Hydrogenaudio Knowledgebase - User contributions [en]

Topic Index

2005-11-06T02:34:12Z

Dura22: /* Mac OS X (Non-BSD Specific) */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Other===

* [[CL-Amp]] (BeOS)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Topic Index

2005-11-06T02:33:49Z

Dura22: /* Linux/BSD */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

===Other===

* [[CL-Amp]] (BeOS)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Topic Index

2005-11-06T02:33:46Z

Dura22: /* Windows */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

===Other===

* [[CL-Amp]] (BeOS)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Topic Index

2005-11-06T02:33:42Z

Dura22: /* Media Players */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

===Other===

* [[CL-Amp]] (BeOS)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Topic Index

2005-11-06T02:33:20Z

Dura22: /* DVD Extractors */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

===Other===

* [[CL-Amp]] (BeOS)

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Topic Index

2005-11-06T02:33:16Z

Dura22: /* CD Extractors */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

===Other===

* [[CL-Amp]] (BeOS)

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Topic Index

2005-11-06T02:33:12Z

Dura22: /* Media Extractors */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

===Other===

* [[CL-Amp]] (BeOS)

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Topic Index

2005-11-06T02:33:08Z

Dura22: /* Metadata (Tags) */

* Please see [http://www.hydrogenaudio.org/forums/index.php?showtopic=12979&st=25&p=247441&#entry247441 this thread] for a discussion of the future structure of this wiki. If you have thoughts, comments, suggestions, etc., please join in this discussion. In the meantime, please feel free to fill in gaps in the information below.
* See also [http://www.hydrogenaudio.org/forums/index.php?showtopic=28658 style related discussion]

==General Information==

===General Guides===
* [[Create a long-term archive]]
* [[Enabling DMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===EAC Guides===
* [[Create a lossless back-up with EAC and Flac]]
* [[EAC and Lame | Configuring EAC and Lame]]
* [[EAC_and_Ogg_Vorbis | Configuring EAC and Vorbis]]
* [[EAC_and_WavPack | Configuring EAC and Wavpack]]
* [[EAC_and_Flac | Configuring EAC and FLAC]]
* [[EAC_and_Monkeys_Audio | Configuring EAC and Monkey's Audio]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===CDex Guides===

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===MP3 Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=LAME Recommended settings for encoding with LAME]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Ogg Vorbis Guides===

* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis Recommended encoders and settings for encoding with Vorbis].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Audio Codecs==

===[[Lossy]]===
*[[AAC]]
*[[AC3]]
*[[ATRAC3]]
*[[DTS]]
*[[MP2]]
*[[MP3]]
*[[Musepack]]
*[[Ogg Vorbis]]
*[[QDesign]]
*[[VQF]]
*[[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===[[Lossless]]===

*[[ALAC|Apple Lossless]]
*[[FLAC|Free Lossless Audio Compressor]]
*[[LA|Lossless Audio]]
*[[LPAC]]
*[[Monkey's Audio]]
*[[OptimFROG]]
*[[RealAudio Lossless]]
*[[Shorten]]
*[[TTA|True Audio]]
*[[WavPack]]
*[[WMA|WMA Lossless]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==[[Metadata]] (Tags)==
* [[APEv1]]
* [[APEv2]]
* [[ID3v1]]
* [[ID3v1.1]]
* [[ID3v2]]
* [[Vorbis Comment]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Media Extractors==

===CD Extractors===

* [[Exact_Audio_Copy|Exact Audio Copy]] (Win32)
* [[iTunes]] (Win32/OsX)
* [[CDex]] (Win32)
* [[cdparanoia]] (Posix)
* [[Grip]] (Posix)
* [[PlexTools]] (Win32)
* [[dBpowerAMP with AccurateRip]] (Win32)

===DVD Extractors===
* [[DVDDecrypter]] (Win32)

==Media Players==

=== Windows ===

* [[Apollo]]

* [[dBpowerAMP]]

* [[Foobar2000:Foobar2000|foobar2000]]

* [[iTunes]]

* [[musikCube]]

* [[Quintessential Player]]

* [[VUplayer]]

* [[Winamp]]

* [[Windows Media Player]]

* [[wxMusik]]

* [[XMPlay]]

===Linux/BSD===

* [[Amarok]]

* [[BMP]]

* [[JuK]]

* [[LAMIP]]

* [[Muine]]

* [[Music Player Daemon (MPD)]]

* [[Rhythmbox]]

* [[wxMusik]]

* [[XMMS]]

===Mac OS X (Non-BSD Specific) ===

* [[iTunes]]

* [[skiTunes]]

* [[Whamb]]

===Other===

* [[CL-Amp]] (BeOS)

==Audio Editors==

=== Windows ===

* [[Adobe_Audition|Adobe Audition]] (Previously known as Cool Edit)
* [[Audacity]]
* [[Goldwave]]
* [http://www.sonymediasoftware.com/products/soundforgefamily.asp Sony Sound Forge] (Previously released by Sonic Foundry)

===Linux/BSD===

* [[Audacity]]
* [[ReZound]]

===Mac OS X (Non-BSD Specific) ===

* [[Audacity]]

===Other===

* [http://timidity.sourceforge.net/ Timidity++] (MIDI to PCM (WAV) converter. Timidity++ synthesizes MIDI files (sequences) in real-time using Gravis UltraSound Soundfont patches (loosly based upon Wavetable Synthesis) to common digital audio file formats such as, WAV, AU, AIFF, Ogg Vorbis, FLAC, etc. Useful for those who want to bypass FM Synthesizers on their sound card's to hear MIDI sequence as it was intended to be heard.)

==Testing Software==

===Subjective Perceptual===

* [[ABC/HR]]

* [[PCABX]]

===Objective===

''Note: Might be good to put something here about the problems of quality comparisons using graphs, frequency sweeps, etc.''

* [[EAQUAL]]

* [[Rightmark_Audio_Analyzer|Rightmark Audio Analyzer]]

==Audio Hardware==

===PC Audio===

*[[Terratec EWX 24/96]]
*[[M-Audio Audiophile 24/96]]
*[[M-Audio Revolution 5.1]]
*[[M-Audio Revolution 7.1]]
*[[Emu 0404 24/96]]
*[[Emu 1212M 24/192]]
*[[Audiotrak MAYA 5.1]]
*[[Audiotrak Prodigy 7.1]]

===Notebook Audio===
*[[Echo Indigo IO 24/96]]

===HiFi===

===Digital Audio Players===

'''Portable Flash'''

''(These players make use of a internal flash drive.)''

* [[Creative MuVo]]

* [[iRiver iFP Series]]

* [[MPIO lFP Series]]

* [[Rio Carbon]]

* [[Neuros]]

* [[Apple iPod shuffle]]

'''Portable HD'''

''(These players make use of a internal harddrive.)''

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[MPIO H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

* [[Neuros]]

* [[Archos Jukebox with Rockbox Software]]

'''Portable CD'''

'''Car Players'''

''(Car stereos that can read MP3, Vorbis, WMA, etc.).''

* [[Aiwa CDC-MP3]]

==Audio Theory==

===Analog Audio===

===Digital Audio===
* [[Replaygain]]

===Testing Methodology===

* [[ABX]]
* [[EAQUAL]]

==Audio Development==

===Getting Started===
''note: Let's start with basic development tools (compilers, engineering tools, dev. libraries) until we think of more tools to add. I am also adding external links to books, tutorials, etc under resources.''

===Tools===

* [http://www.mathworks.com/products/matlab/ MATLAB 7.0] commercial software for algorithmic design, developement, engineering, and scientific computing.
* [http://www.octave.org/ GNU Octave] open-source alternative software (GPL) to MATLAB for numerical computations, engineering, and scientific computing. (multi-platform support)
* [http://www.fftw.org/ FFTW] Is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions on real and complex inputs.
* [http://gcc.gnu.org/ GCC] THE GNU compiler collection for C, C++, Objective-C, Fortran, Java, and Ada.
* [http://www.gnu.org/software/emacs/emacs.html GNU Emacs] an extensible, customizable, self-documenting real-time display editor. Great for writing all types of source code especially on Unix. (multi-platform support)
* [http://www.bloodshed.net/devcpp.html DevCPP] free front-end IDE and compiler for the C and C++ languages. Delphi and C source code available. (Win 9x, NT, 2000, and XP)

===Resources===

* [http://www.hydrogenaudio.org/forums/index.php?showforum=30 Scientific/R&D Forums] for Psychoacoustic, DSP, Electrical Engineering, theory, and coding related questions. (most questions are generally answered)
* [http://www.aes.org/ AES] The Audio Engineering Society website. Home of year-round world AES conferences.
* [http://www.dspguru.com/info/books/favor.htm DSP Tutorials] this site provides another good introduction in to the area of DSP.
* [http://www.musicdsp.org/archive.php?classid=2 Music-DSP] source-code archive for anaylsis, filters, effects and synthesis. (C, C++, and Java code)
* [http://www.alsa-project.org/ ALSA Project] (Advanced Linux Sound Architecture) bringing audio and MIDI capabilities to Linux.
* [http://perso.wanadoo.fr/polyvalens/clemens/wavelets/wavelets.html A Really friendly guide to Wavelets] A good introduction to wavelets aimed towards engineer, requires a fair amount of background knowledge.

===Books/Research===
* [http://www.amazon.co.uk/exec/obidos/ASIN/3540231595/qid=1128902365/sr=1-3/ref=sr_1_8_3/202-6660593-6890208 Psychoacoustics - Facts and Models] author's Zwicker, Fastl, and Hugo, revised 2005 third edition. THE book for comprehensive psychoacoustics models and figures.
* [http://www.eas.asu.edu/~spanias/papers/paper-audio-tedspanias-00.pdf Perceptual Audio Coding] authors A. Painter and T. Spanias. Comprehensive paper on percepual audio coding (PDF)
* [http://www.amazon.com/gp/product/0780334493/103-2094923-9567001?v=glance&n=283155&%5Fencoding=UTF8&me=ATVPDKIKX0DER&no=283155&st=books Speech Communications Human and Machine] this book provides a good introduction to speech coding, inlcuding anaylsis, recognition, and perception. The text is a very good introduction for beginners.
* [http://www.dspguide.com/ Scientist and Engineer's Guide to DSP] author Steve Smith, a great guide for beginners new to the subject of DSP (free online text)
*[http://www.amazon.com/exec/obidos/tg/detail/-/0792391810/ref=ase_theinternetdatac/103-9882844-5344648?v=glance&s=books Vector Quantization] authors Gersho and Gray. Good read for understanding how VQ and arithmetic coding work.

==Audio Resources==

===Websites===

''Note: Let's include a small description to the side for now, so that we have something to work with when this section becomes large enough for its own page''

* http://www.audiocoding.com (Page with a wiki on technical audio topics, homepage of FAAC and FAAD2, also has an AAC forum.)
* http://www.ff123.net (Lots of general information on various MP3 implementations, test samples, testing methodology information, homepage of ABC/HR)
* http://www.head-fi.org (general information/board about head phones and portable audio players)
* http://www.rarewares.org (Downloads for many audio and media tools)
* http://psplab.csie.nctu.edu.tw/invboard2_0/index.php (Perceptual Signal Processing Lab, small university forum based in Tawain dealing with perceptual coding on acedemic level).

===Articles===

===Listening Tests===
* [http://www.rjamorim.com/test/ Roberto's listening tests]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=35438&st=0 Guruboolez listening test]

==Other Topics==

===Video===

* [[MPEG-4 Visual]]
* [[Theora]]
* [[Real Video]]
* [[Windows Media Video]]
* [[VP6]]

===[[Container format]]s===
* [[AVI]]
* [[MP4]]
* [[MOV]]
* [[ASF]]
* [[Matroska]]
* [[Ogg]]

==Glossary==

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Replay Gain

2005-11-06T02:33:06Z

Dura22: /* Additional reading */

=Introduction=

Replaygain is the name of a technology created to achieve the same playback volume of audio files. It specifies the reference level of 89dB and an algorithm to measure the perceived loudness of audio data.

=Implementations=

There are different replaygain implementations, each with its own uses and strength. Most of them use [[meta data]] to indicate the level of the volume change (Volume is adjusted on playback; needs player/decoder support) others modify the Audio Data itself. Generally it is recommended to use an implementation which uses meta data and does not touch the audio itself.

Replaygain has significant advantages over [[Normalization|normalizing]]. It allows the peak loudness of a song to be consistant over an entire collection of audio, much like normalizing (this is called 'Track Gain'). However, it also allows the peak loudness of an album to be consistant over a entire music collection, allowing the dynamics of album to remain (This is called 'Album Gain'). In a meta data based solution, information on both types of replaygain can be stored, and the desired playback effect can be switched back and forth in the appropriate player. However, if the audio is permanently modified, only one type of raplaygain can be chosen.

==MP3Gain==

[http://mp3gain.sourceforge.net/ MP3Gain]

Format: [[MP3]]

Method: Audio or Meta

Limitations: Limited to 1.5db steps in Audio Data mode

==LAME==

[http://lame.sourceforge.net/ LAME]

Format: [[MP3]]

Method: Header ([http://gabriel.mp3-tech.org/mp3infotag.html mp3infotag])

Notes: Added during encoding; not supported by any player yet; Track Gain only

==Replaygain==

[http://rarewares.org/mpc.html MPC replaygain]

Format: MPC

Method: Header (similar to Meta data method. See "notes".)

Notes: Replaygain values are stored in the header and replaygain is part of the Musepack specifications; therefore any Musepack decoder that does not support replaygain can be considered broken.

==Vorbisgain==

[http://www.sjeng.org/vorbisgain.html Vorbisgain]

Format: [[Ogg Vorbis]]

Method: Meta (in [[Vorbis comment]])

==FLAC/metaflac==

[http://flac.sf.net FLAC]

Format: [[FLAC]]

Method: Meta (in [[Vorbis comment]])

==foobar2000 replaygain scanner==

[http://foobar2000.org Foobar2000]

Format:
* [[MP3]]: Values written to [[APEv2]] or [[ID3v2]] tags.
* [[MPC]]: Values written to header as decribed under "replaygain".
* [[Ogg Vorbis]]: In [[Vorbis comment]].
* [[WavPack]]: Values written to [[APEv2]] tags.
* [[AAC]]: Values written to [[APEv2]] tags.
* [[MP4]]: Uses its own itunes-compatible tagging system (though itunes does not support replaygain).
* [[FLAC]]: In [[Vorbis comment]].
* [[APE]]: Values written to [[APEv2]] tags.
* [[WAV]]: Optionally saved into [[APEv2]] tags; otherwise the foobar2000 database is used.
* Modules ([[MOD]] etc.): Optionally saved into [[APEv2]] tags; otherwise the foobar2000 database is used.

You can also choose to only have the replaygain values saved in the foobar2000 database and leave the files untouched.

All other formats are supported but the replaygain values are saved to the foobar2000 database.

==Wavegain==

[http://www.rarewares.org/files/others/wavegain.zip Wavegain]

Format: PCM Wave

Method: Audio

Limitations: Irreversible

=Players support=

Replaygain being present in the specs of flac, mpc and ape formats, any player that support those formats usually support replaygain.

The situation with MP3 is rather different, as it was not part of the mp3 specs. The APEv2 tags metadata implementation is somewhat becoming the de-facto standard.

==Windows==

* [[Foobar2000]] supports replaygain in all possible aspects.
* [[Winamp]]. MP3 replaygain support with adequate plugins (e.g. [http://www3.cypress.ne.jp/otachan/in_mpg123.html Otachan's in_mpg123] - if you can't read japanese, you can find details [http://www.hydrogenaudio.org/forums/index.php?showtopic=18530 in this thread])
* [[XMPlay]] recently implemented replaygain

and probably others.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Linux==

* [[XMMS]]. Reads replaygain from FLAC, MPC, ogg ..
For mp3, use the CVS version of the [http://xmms-mad.sourceforge.net/ xmms-mad] mp3 plugin (it's not yet released as binary, furthermore not available in distribs' versions for now. Meanwhile binaries are available here: [http://perso.crans.org/~krempp/xmms-mad/ custom binaries])
* [[amaroK]]. By using the amaroK-script [http://kde-apps.org/content/show.php?content=26073 ReplayGain]

and possibly others, since [http://developer.kde.org/~wheeler/taglib.html TagLib] added support for APEv2 tags in mp3 files, players using this library (like [[amaroK]] and [[JuK]]) might support that kind of replaygain tags in the near future.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Portable devices==

Current development builds of [http://www.rockbox.org/ Rockbox] for the iRiver H100 series players support replaygain for some encoder formats. This is a rapidly evolving feature. There are no other portable players known to support replaygain.

The iPod features ''Soundcheck'', which seems to produce roughly the same normalization gains as replaygain, but doesnt provide an Album Gain.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Additional reading=
* [http://replaygain.hydrogenaudio.org Original replaygain website]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Replay Gain

2005-11-06T02:32:58Z

Dura22: /* Portable devices */

Secure ripping

2005-11-06T02:32:56Z

Dura22: /* What is Secure Ripping? */

=What is Secure Ripping?=

Making sure there were no errors during the extraction of your cd audio. Rippers such as [[CDex]] and [[EAC]] try to ensure a bit-perfect rip for every track by checking the results, and re-reading any bad areas (from scratches) as many times as needed.

A bit-perfect rip may not always be possible, and so these programs ([[EAC]] especially) will report on any errors that could not be corrected, allowing you to examine or attempt to correct the problems.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Replay Gain

2005-11-06T02:32:50Z

Dura22: /* Linux */

CD copy protection

2005-11-06T02:32:48Z

Dura22:

===Copy Protection Schemes for Audio Discs===

[http://www.macrovision.com/products/cds/index.shtml Macrovision]

* CDS-100
* CDS-200
* CDS-300

[http://www.sunncomm.com/ Sunn Comm]

* Media Max CD-3===Copy Protection Schemes for Audio Discs===

[http://www.macrovision.com/products/cds/index.shtml Macrovision]

* CDS-100
* CDS-200
* CDS-300

[http://www.sunncomm.com/ Sunn Comm]

* Media Max CD-3

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Replay Gain

2005-11-06T02:32:43Z

Dura22: /* Windows */

=Introduction=

Replaygain is the name of a technology created to achieve the same playback volume of audio files. It specifies the reference level of 89dB and an algorithm to measure the perceived loudness of audio data.

=Implementations=

There are different replaygain implementations, each with its own uses and strength. Most of them use [[meta data]] to indicate the level of the volume change (Volume is adjusted on playback; needs player/decoder support) others modify the Audio Data itself. Generally it is recommended to use an implementation which uses meta data and does not touch the audio itself.

Replaygain has significant advantages over [[Normalization|normalizing]]. It allows the peak loudness of a song to be consistant over an entire collection of audio, much like normalizing (this is called 'Track Gain'). However, it also allows the peak loudness of an album to be consistant over a entire music collection, allowing the dynamics of album to remain (This is called 'Album Gain'). In a meta data based solution, information on both types of replaygain can be stored, and the desired playback effect can be switched back and forth in the appropriate player. However, if the audio is permanently modified, only one type of raplaygain can be chosen.

==MP3Gain==

[http://mp3gain.sourceforge.net/ MP3Gain]

Format: [[MP3]]

Method: Audio or Meta

Limitations: Limited to 1.5db steps in Audio Data mode

==LAME==

[http://lame.sourceforge.net/ LAME]

Format: [[MP3]]

Method: Header ([http://gabriel.mp3-tech.org/mp3infotag.html mp3infotag])

Notes: Added during encoding; not supported by any player yet; Track Gain only

==Replaygain==

[http://rarewares.org/mpc.html MPC replaygain]

Format: MPC

Method: Header (similar to Meta data method. See "notes".)

Notes: Replaygain values are stored in the header and replaygain is part of the Musepack specifications; therefore any Musepack decoder that does not support replaygain can be considered broken.

==Vorbisgain==

[http://www.sjeng.org/vorbisgain.html Vorbisgain]

Format: [[Ogg Vorbis]]

Method: Meta (in [[Vorbis comment]])

==FLAC/metaflac==

[http://flac.sf.net FLAC]

Format: [[FLAC]]

Method: Meta (in [[Vorbis comment]])

==foobar2000 replaygain scanner==

[http://foobar2000.org Foobar2000]

Format:
* [[MP3]]: Values written to [[APEv2]] or [[ID3v2]] tags.
* [[MPC]]: Values written to header as decribed under "replaygain".
* [[Ogg Vorbis]]: In [[Vorbis comment]].
* [[WavPack]]: Values written to [[APEv2]] tags.
* [[AAC]]: Values written to [[APEv2]] tags.
* [[MP4]]: Uses its own itunes-compatible tagging system (though itunes does not support replaygain).
* [[FLAC]]: In [[Vorbis comment]].
* [[APE]]: Values written to [[APEv2]] tags.
* [[WAV]]: Optionally saved into [[APEv2]] tags; otherwise the foobar2000 database is used.
* Modules ([[MOD]] etc.): Optionally saved into [[APEv2]] tags; otherwise the foobar2000 database is used.

You can also choose to only have the replaygain values saved in the foobar2000 database and leave the files untouched.

All other formats are supported but the replaygain values are saved to the foobar2000 database.

==Wavegain==

[http://www.rarewares.org/files/others/wavegain.zip Wavegain]

Format: PCM Wave

Method: Audio

Limitations: Irreversible

=Players support=

Replaygain being present in the specs of flac, mpc and ape formats, any player that support those formats usually support replaygain.

The situation with MP3 is rather different, as it was not part of the mp3 specs. The APEv2 tags metadata implementation is somewhat becoming the de-facto standard.

==Windows==

* [[Foobar2000]] supports replaygain in all possible aspects.
* [[Winamp]]. MP3 replaygain support with adequate plugins (e.g. [http://www3.cypress.ne.jp/otachan/in_mpg123.html Otachan's in_mpg123] - if you can't read japanese, you can find details [http://www.hydrogenaudio.org/forums/index.php?showtopic=18530 in this thread])
* [[XMPlay]] recently implemented replaygain

and probably others.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Linux==

* [[XMMS]]. Reads replaygain from FLAC, MPC, ogg ..
For mp3, use the CVS version of the [http://xmms-mad.sourceforge.net/ xmms-mad] mp3 plugin (it's not yet released as binary, furthermore not available in distribs' versions for now. Meanwhile binaries are available here: [http://perso.crans.org/~krempp/xmms-mad/ custom binaries])
* [[amaroK]]. By using the amaroK-script [http://kde-apps.org/content/show.php?content=26073 ReplayGain]

and possibly others, since [http://developer.kde.org/~wheeler/taglib.html TagLib] added support for APEv2 tags in mp3 files, players using this library (like [[amaroK]] and [[JuK]]) might support that kind of replaygain tags in the near future.

==Portable devices==

Current development builds of [http://www.rockbox.org/ Rockbox] for the iRiver H100 series players support replaygain for some encoder formats. This is a rapidly evolving feature. There are no other portable players known to support replaygain.

The iPod features ''Soundcheck'', which seems to produce roughly the same normalization gains as replaygain, but doesnt provide an Album Gain.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Additional reading=
* [http://replaygain.hydrogenaudio.org Original replaygain website]

Windows Media Audio

2005-11-06T02:32:41Z

Dura22:

WMA is Microsoft's compressed audio format. It's actually a generic name for several codecs that can be used inside it:

=Windows Media Audio=

Also known as WMA Standard or WMA Std, it was created by Microsoft to compete against [[MP3]], that was quickly becoming the de-facto standard format for lossy compression.

Even though Microsoft claims it is able to deliver the same quality as MP3 at half the bitrates, that statement is certainly false. A more realistic number would be same quality at around 25% smaller bitrates - and that applies to low bitrates only. At 128kbps, it is easily bested by [[LAME]].

WMA Standard is the second most widespread lossy format (only losing to the ubiquitous MP3), mostly thanks to Microsoft's aggressive marketing tactics.

==Windows Media Audio Professional==

Windows Media Audio Professional (WMA Pro) was recently released to address limitations in WMA Standard. It supports [[multichannel]] encoding and high resolutions (24bit, high [[sampling rate]]s)

Since it's backwards incompatible with WMA Std, Microsoft took the opportunity to make a high quality encoder out of it. Meanwhile WMA Std lost even to MP3 in an informal public listening test, WMA Pro was ranked at the top (next to other high quality formats) in a similar test.

These days, Microsoft is pushing the Pro codec for inclusion in the next generation DVD standard as standard audio format.

==Windows Media Audio Lossless==

This is the matematically [[lossless]] codec in the Windows Media family. It's a welcome addition since it was the first lossless codec backed up by a major player in the multimedia compression field. Compression efficiency-wise, it's on par with [[WavPack]] high and between [[Monkey's Audio]] fast and normal.

==Windows Media Audio Voice==

This codec, among the first ones to be added to the Windows Media portfolio, is VoiceAge's [[ACELP]].net. It delivers very acceptable voice quality at bitrates around 4 and 20kbps.

==Addional Reading==

* [http://www.microsoft.com/windows/windowsmedia/9series/codecs/audio.aspx Description of Windows Media Audio codecs] at Microsoft
* [[Lossless_comparison|Lossless Codec Comparison]] by Rjamorim

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Replay Gain

2005-11-06T02:32:34Z

Dura22: /* Players support */

=Introduction=

Replaygain is the name of a technology created to achieve the same playback volume of audio files. It specifies the reference level of 89dB and an algorithm to measure the perceived loudness of audio data.

=Implementations=

There are different replaygain implementations, each with its own uses and strength. Most of them use [[meta data]] to indicate the level of the volume change (Volume is adjusted on playback; needs player/decoder support) others modify the Audio Data itself. Generally it is recommended to use an implementation which uses meta data and does not touch the audio itself.

Replaygain has significant advantages over [[Normalization|normalizing]]. It allows the peak loudness of a song to be consistant over an entire collection of audio, much like normalizing (this is called 'Track Gain'). However, it also allows the peak loudness of an album to be consistant over a entire music collection, allowing the dynamics of album to remain (This is called 'Album Gain'). In a meta data based solution, information on both types of replaygain can be stored, and the desired playback effect can be switched back and forth in the appropriate player. However, if the audio is permanently modified, only one type of raplaygain can be chosen.

==MP3Gain==

[http://mp3gain.sourceforge.net/ MP3Gain]

Format: [[MP3]]

Method: Audio or Meta

Limitations: Limited to 1.5db steps in Audio Data mode

==LAME==

[http://lame.sourceforge.net/ LAME]

Format: [[MP3]]

Method: Header ([http://gabriel.mp3-tech.org/mp3infotag.html mp3infotag])

Notes: Added during encoding; not supported by any player yet; Track Gain only

==Replaygain==

[http://rarewares.org/mpc.html MPC replaygain]

Format: MPC

Method: Header (similar to Meta data method. See "notes".)

Notes: Replaygain values are stored in the header and replaygain is part of the Musepack specifications; therefore any Musepack decoder that does not support replaygain can be considered broken.

==Vorbisgain==

[http://www.sjeng.org/vorbisgain.html Vorbisgain]

Format: [[Ogg Vorbis]]

Method: Meta (in [[Vorbis comment]])

==FLAC/metaflac==

[http://flac.sf.net FLAC]

Format: [[FLAC]]

Method: Meta (in [[Vorbis comment]])

==foobar2000 replaygain scanner==

[http://foobar2000.org Foobar2000]

Format:
* [[MP3]]: Values written to [[APEv2]] or [[ID3v2]] tags.
* [[MPC]]: Values written to header as decribed under "replaygain".
* [[Ogg Vorbis]]: In [[Vorbis comment]].
* [[WavPack]]: Values written to [[APEv2]] tags.
* [[AAC]]: Values written to [[APEv2]] tags.
* [[MP4]]: Uses its own itunes-compatible tagging system (though itunes does not support replaygain).
* [[FLAC]]: In [[Vorbis comment]].
* [[APE]]: Values written to [[APEv2]] tags.
* [[WAV]]: Optionally saved into [[APEv2]] tags; otherwise the foobar2000 database is used.
* Modules ([[MOD]] etc.): Optionally saved into [[APEv2]] tags; otherwise the foobar2000 database is used.

You can also choose to only have the replaygain values saved in the foobar2000 database and leave the files untouched.

All other formats are supported but the replaygain values are saved to the foobar2000 database.

==Wavegain==

[http://www.rarewares.org/files/others/wavegain.zip Wavegain]

Format: PCM Wave

Method: Audio

Limitations: Irreversible

=Players support=

Replaygain being present in the specs of flac, mpc and ape formats, any player that support those formats usually support replaygain.

The situation with MP3 is rather different, as it was not part of the mp3 specs. The APEv2 tags metadata implementation is somewhat becoming the de-facto standard.

==Windows==

* [[Foobar2000]] supports replaygain in all possible aspects.
* [[Winamp]]. MP3 replaygain support with adequate plugins (e.g. [http://www3.cypress.ne.jp/otachan/in_mpg123.html Otachan's in_mpg123] - if you can't read japanese, you can find details [http://www.hydrogenaudio.org/forums/index.php?showtopic=18530 in this thread])
* [[XMPlay]] recently implemented replaygain

and probably others.

==Linux==

* [[XMMS]]. Reads replaygain from FLAC, MPC, ogg ..
For mp3, use the CVS version of the [http://xmms-mad.sourceforge.net/ xmms-mad] mp3 plugin (it's not yet released as binary, furthermore not available in distribs' versions for now. Meanwhile binaries are available here: [http://perso.crans.org/~krempp/xmms-mad/ custom binaries])
* [[amaroK]]. By using the amaroK-script [http://kde-apps.org/content/show.php?content=26073 ReplayGain]

and possibly others, since [http://developer.kde.org/~wheeler/taglib.html TagLib] added support for APEv2 tags in mp3 files, players using this library (like [[amaroK]] and [[JuK]]) might support that kind of replaygain tags in the near future.

==Portable devices==

Current development builds of [http://www.rockbox.org/ Rockbox] for the iRiver H100 series players support replaygain for some encoder formats. This is a rapidly evolving feature. There are no other portable players known to support replaygain.

The iPod features ''Soundcheck'', which seems to produce roughly the same normalization gains as replaygain, but doesnt provide an Album Gain.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Additional reading=
* [http://replaygain.hydrogenaudio.org Original replaygain website]

CDex

2005-11-06T02:32:32Z

Dura22:

CDex is a tool to do all sorts of things audio related. Mainly focused on ripping and converting, things like turning your home Compact Disc collection into an mp3 collection on your hard drive become extremely easy. With built in support for many encoders you wont find any shortage of options for your media files. Below is a more in-depth explination of CDex features.

'''CDex Feature List'''

* Easy to use interface
* Media File Player
* Create PLS and M3U playlist files
* Advanced jitter correction
* Supports the [http://www.xiph.org/paranoia/index.html cdparanoia] software extraction libraries
* Support for many file formats/audio encoders (WAV, [[MP3]], [[Ogg_Vorbis|OGG]], VQF, [[Monkey%27s_Audio|APE]], etc)
* Support for ID3 V1 and V2 tags
* Support for normalization of audio files
* Support for transcoding of compressed audio files
* Support for CDDB
* Support for recording from the analog input line

Best of all CDex is entirely free! You will never have to pay to use the software or register in any way. Moreover, CDex is entirely opensource, as per the GPL Terms.

=Additional Reading=

* [http://cdexos.sourceforge.net/ CDex homepage]
* [[EAC_Vs_CDex_SecureMode | CDex full paranoia versus EAC secure mode]] (by Pio2001)
* [http://www.users.on.net/~alexanderino/cdex/ Jason Antony's Guide to Using CDex]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Matroska

2005-11-06T02:32:29Z

Dura22:

=Introduction=

'''Matroska/матрёшка''' is an extensible open standard audio/video container format for various video and audio codecs. Matroska is based on [[EBML]], a binary variation of XML. It's aim is to replace the ageing [[AVI]] format and be a powerful alternative to other container formats like [[ASF]], [[MP4]], [[MOV]], RM, MPX and [[Ogg|Ogg/OGM]]. It can store Audio Only, Video Only, or both, and is free for personal use.

=Features=

Matroska has all the features you would expect of a modern A/V Container including:

* Streamable over internet (HTTP and RTP)
* Fast seeking in the file
* High error recovery
* Menus (like DVD's have)
* Chapter entries
* Selectable subtitle streams
* Selectable audio streams
* Modularly Extendable
* Sophisticated Tagging

The current official tool for creating a Matroska file (available from Matroska's [http://matroska.org/index.html Home Page]) supports the following audio and video codecs:

==Audio==

* [[MPEG]] Audio 1, 2, 2.5 Layer III
* [[MPEG]] Audio 1, 2 Layer II
* [[MPEG]] Audio 1, 2 Layer I
* [[PCM]] Integer Big Endian
* [[PCM]] Integer Little Endian
* Floating Point, IEEE compatible
* Dolby [[AC3]]
* [[DTS|Digital Theater Systems]]
* OggVorbis
* [[WavPack]]
* [[FLAC]] (Free Lossless Audio Compresion)
* Realmedia Audio Codecs (including Real Audio 1, Real Audio 2, Real Audio Cook, Sipro Voice Codec, Real Audio LossLess Format, and the Sony [[ATRAC]]3 Codec)
* [[AAC]] Audio (including both LC AAC and HE AAC)
* QuickTime Audio Codecs

==Video==

* MPEG4 ISO Profile Video, i.e DivX 4/5, XviD, FFMPEG (including Simple Profile, Advanced Simple Profile, and Advanced Profile)
* Microsoft MPEG4 V3 (and derivatives, including DivX 3, Angelpotion, SMR, etc. V1/v2 covered in VfW compatibility mode)
* MPEG1
* MPEG2
* Real Video (Real Video 1.0, Real Video G2/G2+SVT, Real Video 8, and Real Video 9)
* Video from QuickTime files (including the Sorenson and Cinepack codecs)

==Extensions==

* MKV - File containing at least one video stream and possibly audio and/or subtitle stream(s).
* MKA - File containing at least one audio stream and possible subtitle stream(s).
* MKS - File containing at least one subtitle stream.

=Tools=
* [http://www.bunkus.org/videotools/mkvtoolnix/ MKVtoolnix]

=Additional reading=
* [http://matroska.org/index.html Home Page]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

PlexTools

2005-11-06T02:32:27Z

Dura22: /* Advanced DAE Settings */

==Setup Guide==

Start by opening Plextools & selecting Digital Audio Extraction in the lower left list box.

===Output Path & Filename Options===

Output Path & File Options are user specific, you may find a different output path & file name scheme works better for you. I will give an explanation of the options & also my suggestion.
The Output Path can be found at the middle of the main window of Digital Audio Extraction

[[Image:Plex_output_path.png|Plextools output path]]

You need to set an output path for the audio files Plextools will extract from your CD's, [[Image:Plex_search.png|Plextools search]] ''create a folder for your rips'', I'll place the folder on my desktop, and name it Plextools Rips, ''then'' [[Image:Plex_save.png|Plextools save]] ''save it as the output path.''

The Filename Options section is located at the top left of Digital Audio Extraction tab of Preferences.

[[Image:Plex_filename.png|Plextools filename]]

1. In '''Spaces''' you select if you want spaces in CD TEXT information to be; Included, Removed (no spaces) or replaced with underscores ( _ ) in the output. [[Image:Plex_include.png|Plextools include]] ''include spaces is suggested''.
2. In '''Filename construction''' you input how you want your album (folder) & tracks (file) to be named, you can use any combinations of filename codes to create your desired scheme, and If you don’t mind manually inputting the infomation [[CD types]] can also be useful for classifying your CD's. [[Image:Plex_syntax.png|Plextools naming syntax]] ''is the suggested scheme''.
<table border="1">
<caption algin="center"><b>Filename Codes</b></caption>
<tr>
<th>
Input
</th>
<th>
Output
</th>
</tr>

<tr>
<td>
%N
</td>
<td>
Track number
</td>
</tr>

<tr>
<td>
%T
</td>
<td>
Track title
</td>
</tr>

<tr>
<td>
%A
</td>
<td>
Track artist
</td>
</tr>

<tr>
<td>
%C
</td>
<td>
Disc title
</td>
</tr>

<tr>
<td>
%I
</td>
<td>
ISRC code
</td>
</tr>

<tr>
<td>
%Y
</td>
<td>
Release year
</td>
</tr>
</table>

3. In '''Get CD TEXT from''' you select where Plextools should get the information from; the CD (the physical Audio CD) or freedb (online database). Although you can always be sure that the CD TEXT in your Audio CD is correct (unlike freedb) very few CD’s contain CD TEXT. [[Image:Plex_from.png|Plextools from]] ''CD is recommended'' that way Plextools will search the CD & then if no data is found it will use the freedb database.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Freedb===

''under construction''

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Advanced DAE Settings===

Plextools has a powerful function that is not provided with standard audio extraction software: Audio Error Detection. It will allow detection of errors during the reading of audio tracks.

The Options section is at the bottom right of the main window of Digital Audio Extraction.

[[Image:Plex_DAE6.png|Plextools DAE]]

Using ''Audio error detection (tick) is highly recommended'' & is necessary for error recovery to function.

Plextools offers a choice of smart strategies that attempt to recover the original data. These strategies consist out of combinations of re-reading the data and changing the read speed. Depending on the type and severity of the damage, each strategy will give a different result.

<table bgcolor="white" cellspacing="0" cellpadding="4" width="400" align="center">
<caption algin="center"><b>DAE Error Recovery Options</b></caption>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Report errors only</font>
</th>
</tr>
<tr>
<td>
This strategy can be used when the source disc is error-free or error correction is not necessary.
</td>
</tr>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Reduce the speed upon error</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read at a lower speed in order to find an error-free reading.
</td>
</tr>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Read again upon error</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed in order to find an error-free reading.The optional <i>Allow Speed Down</i> can be used to achieve better results at a lower speed.
</td>
</tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Recover the best sector (least errors)</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed. When the errors stay, the sectors with the least errors will be used to re-assemble the original data.The optional Allow Speed Down can be used to achieve better results at lower speed
</td>
</tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Recover the best bytes (least errors) per sector</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed. When the errors stay, the bytes with the least errors will be used to re-assemble the original data.
</tr>
</table>

Find the DAE Recovery section at the bottom left of Digital Audio Extraction tab of Preferences
[[Image:Plex_DAE7.png|Plextools DAE]]

1. The options in this list are described in the DAE Error Recovery Options table, the Error Recovery Option you select will only effect speed when an error is encountered, & will have little to no impact on the accuracy of error reporting (and detection). [[Image:Plex_DAE0.png|Plextools DAE]] ''5. Recover the best bytes (least errors) per sector'' is the most advanced & will yield best results for recovering errors, it ''is the recommended DAE Error Recovery Option''.

2. In the '''Retries''' text box you input how many times Plextools will command the drive to re-read a position which contains an error, this will effect any DAE Error Recovery Option which performs ''(Retries)''. [[Image:Plex_DAE2.png|Plextools DAE]] ''maximum setting of 99 is recommended''.

3.In the '''Maximum Errors''' list box you select how many errors Plextools will allow until it aborts extraction, this is a user specific option however [[Image:Plex_DAE3.png|Plextools DAE]] ''minimum option of 100 is recommend'', if errors occur attempt some type of CD cleaning & retry, if errors are still preset you can select unlimited to force extraction.

4. In the '''Allow Speed Down''' tick box you select if will allow Plextools to speed down the drive in when it encounters an error, this will be done in sequence until the drive reaches its lowest speed or the errors are recovered, after the position is read the drive will be sped up again, this will effect any DAE Error Recovery option you select, and [[Image:Plex_DAE4.png|Plextools DAE]] ''is recommended (tick)''.

5. In the '''Error Log''' tick box you select if you want Plextools to output a text file containing detailed information about if & when errors occurred, this is a user specific option however this option [[Image:Plex_DAE5.png|Plextools DAE]] ''is recommended (tick)'' so you can keep track the condition of your rips.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

PlexTools

2005-11-06T02:32:15Z

Dura22: /* Freedb */

PlexTools

2005-11-06T02:32:13Z

Dura22: /* Output Path & Filename Options */

==Setup Guide==

Start by opening Plextools & selecting Digital Audio Extraction in the lower left list box.

===Output Path & Filename Options===

Output Path & File Options are user specific, you may find a different output path & file name scheme works better for you. I will give an explanation of the options & also my suggestion.
The Output Path can be found at the middle of the main window of Digital Audio Extraction

[[Image:Plex_output_path.png|Plextools output path]]

You need to set an output path for the audio files Plextools will extract from your CD's, [[Image:Plex_search.png|Plextools search]] ''create a folder for your rips'', I'll place the folder on my desktop, and name it Plextools Rips, ''then'' [[Image:Plex_save.png|Plextools save]] ''save it as the output path.''

The Filename Options section is located at the top left of Digital Audio Extraction tab of Preferences.

[[Image:Plex_filename.png|Plextools filename]]

1. In '''Spaces''' you select if you want spaces in CD TEXT information to be; Included, Removed (no spaces) or replaced with underscores ( _ ) in the output. [[Image:Plex_include.png|Plextools include]] ''include spaces is suggested''.
2. In '''Filename construction''' you input how you want your album (folder) & tracks (file) to be named, you can use any combinations of filename codes to create your desired scheme, and If you don’t mind manually inputting the infomation [[CD types]] can also be useful for classifying your CD's. [[Image:Plex_syntax.png|Plextools naming syntax]] ''is the suggested scheme''.
<table border="1">
<caption algin="center"><b>Filename Codes</b></caption>
<tr>
<th>
Input
</th>
<th>
Output
</th>
</tr>

<tr>
<td>
%N
</td>
<td>
Track number
</td>
</tr>

<tr>
<td>
%T
</td>
<td>
Track title
</td>
</tr>

<tr>
<td>
%A
</td>
<td>
Track artist
</td>
</tr>

<tr>
<td>
%C
</td>
<td>
Disc title
</td>
</tr>

<tr>
<td>
%I
</td>
<td>
ISRC code
</td>
</tr>

<tr>
<td>
%Y
</td>
<td>
Release year
</td>
</tr>
</table>

3. In '''Get CD TEXT from''' you select where Plextools should get the information from; the CD (the physical Audio CD) or freedb (online database). Although you can always be sure that the CD TEXT in your Audio CD is correct (unlike freedb) very few CD’s contain CD TEXT. [[Image:Plex_from.png|Plextools from]] ''CD is recommended'' that way Plextools will search the CD & then if no data is found it will use the freedb database.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Freedb===

''under construction''

===Advanced DAE Settings===

Plextools has a powerful function that is not provided with standard audio extraction software: Audio Error Detection. It will allow detection of errors during the reading of audio tracks.

The Options section is at the bottom right of the main window of Digital Audio Extraction.

[[Image:Plex_DAE6.png|Plextools DAE]]

Using ''Audio error detection (tick) is highly recommended'' & is necessary for error recovery to function.

Plextools offers a choice of smart strategies that attempt to recover the original data. These strategies consist out of combinations of re-reading the data and changing the read speed. Depending on the type and severity of the damage, each strategy will give a different result.

<table bgcolor="white" cellspacing="0" cellpadding="4" width="400" align="center">
<caption algin="center"><b>DAE Error Recovery Options</b></caption>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Report errors only</font>
</th>
</tr>
<tr>
<td>
This strategy can be used when the source disc is error-free or error correction is not necessary.
</td>
</tr>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Reduce the speed upon error</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read at a lower speed in order to find an error-free reading.
</td>
</tr>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Read again upon error</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed in order to find an error-free reading.The optional <i>Allow Speed Down</i> can be used to achieve better results at a lower speed.
</td>
</tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Recover the best sector (least errors)</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed. When the errors stay, the sectors with the least errors will be used to re-assemble the original data.The optional Allow Speed Down can be used to achieve better results at lower speed
</td>
</tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Recover the best bytes (least errors) per sector</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed. When the errors stay, the bytes with the least errors will be used to re-assemble the original data.
</tr>
</table>

Find the DAE Recovery section at the bottom left of Digital Audio Extraction tab of Preferences
[[Image:Plex_DAE7.png|Plextools DAE]]

1. The options in this list are described in the DAE Error Recovery Options table, the Error Recovery Option you select will only effect speed when an error is encountered, & will have little to no impact on the accuracy of error reporting (and detection). [[Image:Plex_DAE0.png|Plextools DAE]] ''5. Recover the best bytes (least errors) per sector'' is the most advanced & will yield best results for recovering errors, it ''is the recommended DAE Error Recovery Option''.

2. In the '''Retries''' text box you input how many times Plextools will command the drive to re-read a position which contains an error, this will effect any DAE Error Recovery Option which performs ''(Retries)''. [[Image:Plex_DAE2.png|Plextools DAE]] ''maximum setting of 99 is recommended''.

3.In the '''Maximum Errors''' list box you select how many errors Plextools will allow until it aborts extraction, this is a user specific option however [[Image:Plex_DAE3.png|Plextools DAE]] ''minimum option of 100 is recommend'', if errors occur attempt some type of CD cleaning & retry, if errors are still preset you can select unlimited to force extraction.

4. In the '''Allow Speed Down''' tick box you select if will allow Plextools to speed down the drive in when it encounters an error, this will be done in sequence until the drive reaches its lowest speed or the errors are recovered, after the position is read the drive will be sped up again, this will effect any DAE Error Recovery option you select, and [[Image:Plex_DAE4.png|Plextools DAE]] ''is recommended (tick)''.

5. In the '''Error Log''' tick box you select if you want Plextools to output a text file containing detailed information about if & when errors occurred, this is a user specific option however this option [[Image:Plex_DAE5.png|Plextools DAE]] ''is recommended (tick)'' so you can keep track the condition of your rips.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

PlexTools

2005-11-06T02:32:03Z

Dura22: /* Setup Guide */

==Setup Guide==

Start by opening Plextools & selecting Digital Audio Extraction in the lower left list box.

===Output Path & Filename Options===

Output Path & File Options are user specific, you may find a different output path & file name scheme works better for you. I will give an explanation of the options & also my suggestion.
The Output Path can be found at the middle of the main window of Digital Audio Extraction

[[Image:Plex_output_path.png|Plextools output path]]

You need to set an output path for the audio files Plextools will extract from your CD's, [[Image:Plex_search.png|Plextools search]] ''create a folder for your rips'', I'll place the folder on my desktop, and name it Plextools Rips, ''then'' [[Image:Plex_save.png|Plextools save]] ''save it as the output path.''

The Filename Options section is located at the top left of Digital Audio Extraction tab of Preferences.

[[Image:Plex_filename.png|Plextools filename]]

1. In '''Spaces''' you select if you want spaces in CD TEXT information to be; Included, Removed (no spaces) or replaced with underscores ( _ ) in the output. [[Image:Plex_include.png|Plextools include]] ''include spaces is suggested''.
2. In '''Filename construction''' you input how you want your album (folder) & tracks (file) to be named, you can use any combinations of filename codes to create your desired scheme, and If you don’t mind manually inputting the infomation [[CD types]] can also be useful for classifying your CD's. [[Image:Plex_syntax.png|Plextools naming syntax]] ''is the suggested scheme''.
<table border="1">
<caption algin="center"><b>Filename Codes</b></caption>
<tr>
<th>
Input
</th>
<th>
Output
</th>
</tr>

<tr>
<td>
%N
</td>
<td>
Track number
</td>
</tr>

<tr>
<td>
%T
</td>
<td>
Track title
</td>
</tr>

<tr>
<td>
%A
</td>
<td>
Track artist
</td>
</tr>

<tr>
<td>
%C
</td>
<td>
Disc title
</td>
</tr>

<tr>
<td>
%I
</td>
<td>
ISRC code
</td>
</tr>

<tr>
<td>
%Y
</td>
<td>
Release year
</td>
</tr>
</table>

3. In '''Get CD TEXT from''' you select where Plextools should get the information from; the CD (the physical Audio CD) or freedb (online database). Although you can always be sure that the CD TEXT in your Audio CD is correct (unlike freedb) very few CD’s contain CD TEXT. [[Image:Plex_from.png|Plextools from]] ''CD is recommended'' that way Plextools will search the CD & then if no data is found it will use the freedb database.

===Freedb===

''under construction''

===Advanced DAE Settings===

Plextools has a powerful function that is not provided with standard audio extraction software: Audio Error Detection. It will allow detection of errors during the reading of audio tracks.

The Options section is at the bottom right of the main window of Digital Audio Extraction.

[[Image:Plex_DAE6.png|Plextools DAE]]

Using ''Audio error detection (tick) is highly recommended'' & is necessary for error recovery to function.

Plextools offers a choice of smart strategies that attempt to recover the original data. These strategies consist out of combinations of re-reading the data and changing the read speed. Depending on the type and severity of the damage, each strategy will give a different result.

<table bgcolor="white" cellspacing="0" cellpadding="4" width="400" align="center">
<caption algin="center"><b>DAE Error Recovery Options</b></caption>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Report errors only</font>
</th>
</tr>
<tr>
<td>
This strategy can be used when the source disc is error-free or error correction is not necessary.
</td>
</tr>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Reduce the speed upon error</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read at a lower speed in order to find an error-free reading.
</td>
</tr>
<tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Read again upon error</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed in order to find an error-free reading.The optional <i>Allow Speed Down</i> can be used to achieve better results at a lower speed.
</td>
</tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Recover the best sector (least errors)</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed. When the errors stay, the sectors with the least errors will be used to re-assemble the original data.The optional Allow Speed Down can be used to achieve better results at lower speed
</td>
</tr>
<th height="10%" bgcolor="darkblue">
<font color="white">Recover the best bytes (least errors) per sector</font>
</th>
</tr>
<tr>
<td>
When Uncorrectable Errors are found, the damaged area will be read again for a number of times <i>(Retries)</i> at the selected speed. When the errors stay, the bytes with the least errors will be used to re-assemble the original data.
</tr>
</table>

Find the DAE Recovery section at the bottom left of Digital Audio Extraction tab of Preferences
[[Image:Plex_DAE7.png|Plextools DAE]]

1. The options in this list are described in the DAE Error Recovery Options table, the Error Recovery Option you select will only effect speed when an error is encountered, & will have little to no impact on the accuracy of error reporting (and detection). [[Image:Plex_DAE0.png|Plextools DAE]] ''5. Recover the best bytes (least errors) per sector'' is the most advanced & will yield best results for recovering errors, it ''is the recommended DAE Error Recovery Option''.

2. In the '''Retries''' text box you input how many times Plextools will command the drive to re-read a position which contains an error, this will effect any DAE Error Recovery Option which performs ''(Retries)''. [[Image:Plex_DAE2.png|Plextools DAE]] ''maximum setting of 99 is recommended''.

3.In the '''Maximum Errors''' list box you select how many errors Plextools will allow until it aborts extraction, this is a user specific option however [[Image:Plex_DAE3.png|Plextools DAE]] ''minimum option of 100 is recommend'', if errors occur attempt some type of CD cleaning & retry, if errors are still preset you can select unlimited to force extraction.

4. In the '''Allow Speed Down''' tick box you select if will allow Plextools to speed down the drive in when it encounters an error, this will be done in sequence until the drive reaches its lowest speed or the errors are recovered, after the position is read the drive will be sped up again, this will effect any DAE Error Recovery option you select, and [[Image:Plex_DAE4.png|Plextools DAE]] ''is recommended (tick)''.

5. In the '''Error Log''' tick box you select if you want Plextools to output a text file containing detailed information about if & when errors occurred, this is a user specific option however this option [[Image:Plex_DAE5.png|Plextools DAE]] ''is recommended (tick)'' so you can keep track the condition of your rips.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Vorbis

2005-11-06T02:32:00Z

Dura22:

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Vorbis

2005-11-06T02:31:46Z

Dura22: /* External links */

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Vorbis

2005-11-06T02:31:43Z

Dura22: /* Supported Digital Audio Players */

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

Vorbis

2005-11-06T02:31:41Z

Dura22: /* Software */

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

Vorbis

2005-11-06T02:31:36Z

Dura22: /* Technical details used in compression */

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

Vorbis

2005-11-06T02:31:34Z

Dura22: /* Cons */

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

Vorbis

2005-11-06T02:31:31Z

Dura22: /* Pros */

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

Vorbis

2005-11-06T02:31:28Z

Dura22: /* Introduction */

[[image:fish.png|right|]]

=Introduction=
'''Vorbis''' ([http://www.vorbis.com www.vorbis.com]) is a fully open, non-proprietary, patent-free (subject to [http://www.hydrogenaudio.org/forums/index.php?showtopic=13531 speculation]), and royalty-free, general-purpose compressed audio format for mid to high quality (8khz-48.0kHz, 16+ bit, [[multichannel]]) audio and music at fixed and variable bitrates from 16 to >256 kbps/channel. This places vorbis in the same competitive class as audio representations such as MPEG-4 ([[AAC]]), and similar to, but higher performance [[MP3]], TwinVQ ([[VQF]]), [[WMA]] and [[PAC]].

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.org's ogg multimedia project.

Informal listening test suggests Vorbis to be comparable to MPEG-4 [[AAC]] at most bitrates and [[MPC]] at 128 kbps. Transparency is generally reached at about 150-170 kbps (-q 5) (with some exceptions). The encoder is reasonably young and unoptimized, so further improvements can always be expected.

Unfortunately, Xiph.org has failed to improve Vorbis at a steady rate since its initial 1.0 release in July 2002 (due to other developement projects and time constraints). Since then development has been led by other coders such as [http://sjeng.org/vorbisgt3.html Garf] and [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi]. Aoyumi's AoTuV series of encoders was incorporated into the September 2004 release of 1.1, which brought about the first quality improvements across the board for 2 years. Currently Aoyumi is working on AoTuv Beta 4 and future releases.

Vorbis has had success with many recent video game titles employing Vorbis as opposed to MP3 (with Epic Games' Unreal Tournament 2003 and Unreal Tournament 2004, the PC port of Microsoft's Halo and Uru being notable examples). It's also an official part of the [http://www.openal.org/extensions.html OpenAL] extension library.

==Pros==
* Free (as in speech), Open Source and claimed to be patent free
* Good all-round performance (>48 kbps - a leading codec at [http://www.rjamorim.com/test/multiformat128/results.html 128 kbps])
* Well written [http://www.xiph.org/ogg/vorbis/docs.html specs]
* Several portable [http://wiki.hydrogenaudio.org/index.php?title=Ogg_Vorbis#Hardware hardware players]
* Suitable for internet-streaming (via [http://www.icecast.org/ Icecast] and other methods)
* Fully [[gapless]] playback
* High potential for further tuning
* Structured to allow the design for a hybrid filterbank.

==Cons==
* Limited official development (third-party developement is always encouraged)
* Current implementations are more computationally intensive to encode and decode than MP3 (Vorbis 2.0 seeks to overcome this limitation by slimlining the encoder)
* Multichannel input mappings for 5.1, Ambisonic-B, and other config have no channel coupling and aren't tuned (expect sub-optimal results until code is improved).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Technical details used in compression=
* Multiple block sizes for window switching including overlap (varies for different modes, powers of two only)
* Customly designed [[window function]] is applied similiar to the sine window '''<small>wk = sin(PI/2*sin^2[PI/2n*(k+0.5)])</small>''' (good sidelobe rejection)
* Psychoacoustics masking exploited via an ([[ATH]] model)
* Masking curves derived from ''emperically'' adjusted set of [http://www.zainea.com/masking2.htm Ehmer Curves]
* Modified Discrete Cosine Transform ([[MDCT]]) is used for noise analysis.
* Fast Fourier Transform ([[FFT]]) is used for tonal analysis.
* Global masking curve is a mixture between calculated FFT+MDCT curves and ATH curves.
* The noise-floor (envelope) is calculate using global masking curve & piecewise linear approximation divded by spectrum to generate the residue (fine detail).
* [[Noise normalization]] is applied to compensate for energy lost in certain frequency bands due to quantization ''(main cause metallic warbling in MP3)''
* The channels are coupled ''strictly'' by residue using ([http://us.xiph.org/ogg/vorbis/doc/stereo.html point/phase stereo] and lossless).
* Multistage [[Vector quantization]] is used for coding the noise-floor and residue backend using ''trained'' codebooks.
* [[Huffman coding]] is used to minimize vector codeword redundancy.

=Software=
'''Encoders'''
* [[Oggenc]] official command-line encoder (Win32/Posix).
* [http://www.rarewares.org/ogg.html OggdropXPd] advanced drag-and-drop encoder by John33 (Win32)
* [http://www.saunalahti.fi/cse/foobar2000/ foo_vorbisenc] vorbis encoder library for Foobar2000 (Win32)

'''Decoders'''
* [[Ogg123]] for Unix systems (GPL), a very simple to use command-line player. (Win32/Posix)
* [http://www.rarewares.org/ogg.html OggDec] for Windows, by John33, a very featureful command line decoder. (Win32)
* [http://qtcomponents.sourceforge.net/ QuickTime Component] (Allows playback in [[QuickTime]]/[[iTunes]]) (Win32)
* [http://corevorbis.corecodec.org/ CoreVorbis] (DirectShow) (Win32)
* [http://www.illiminable.com/ogg/ illiminable Ogg Directshow Filters] (Also plays Speex, Theora and FLAC) (Win32)

=Supported Digital Audio Players=
The following list contains some players that support Vorbis playback.
A [http://wiki.xiph.org/index.php/PortablePlayers longer list] can be found at xiph's wiki.
* [http://www.slimdevices.com/ Slim Devices: Squeezebox] External player
* [[iRiver H-Series]]
* [[MPIO H-Series]]
* [[Rio Karma]]
* [http://www.ifreemax.com/ FreeMax] FW-960
* [http://www.iaudiophile.net/ iAudio] [[IAudio M3|M3]], U2, G3, 5
* [[Neuros]]
* [http://www.samsung.com/Products Samsung]
* [http://www.yepp.co.kr/ Yepp] YP-T6, YP-T7, YP-C1, YP-F1, YP-53(Firmware 1.200), other..

=External links=
The following links contain information surrounding the Ogg Vorbis codec that can be found on Hydrogenaudio and elsewhere throughout the web.

* [[Ogg]] (Container)
* [http://www.vorbis.com Vorbis official website] (updated)
* [http://en.wikipedia.org/wiki/Vorbis Vorbis at Wikipedia.]
* [http://www.audiocoding.com/modules/wiki/?page=Ogg+Vorbis Ogg Vorbis at AudioCoding]
* [http://www.rarewares.org/ogg.html Ogg Vorbis binaries at Rarewares. ]
* [http://www.rjamorim.com/test/ Listening tests comparing Vorbis against MP3, AAC, WMA, etc.]
* [http://www.hydrogenaudio.org/forums/index.php?showtopic=15049 Recommended settings thread for encoding with Vorbis.]
* [http://wiki.hydrogenaudio.org/index.php?title=EAC_and_Ogg_Vorbis Configuring EAC and Vorbis as an external command-line encoder]
* [http://www.geocities.jp/aoyoume/aotuv/ Aoyumi homepage tuned versions of Vorbis 1.1 encoder and current beta binaries.]
* [http://homepage3.nifty.com/blacksword/index_e.htm Archer/Lancer homepage optimized versions of AoTuV Beta 3 Vorbis encoder and other SSE optmizations. ]
* [http://www.free-comp-shop.com/vorbis.pdf Keith Wright rendition of understanding the MDCT in Vorbis by defineing it's basic trig properties (good read)]
* [http://www.xiph.org Xiph.org Foundation]
* [http://wiki.xiph.org/index.php/Bounties Xiph.org Vorbis bounties]

Hydrogenaudio Knowledgebase:Sandbox

2005-11-06T02:31:17Z

Dura22:

<nowiki>some text that is not formated</nowiki>

<math>a^2</math>

<math>\sqrt{5}</math>

<math>\sum_{n=0}^\infty \frac{a^n}{n!}</math>

<math>\lim_{x\to\infty}f(x)=0</math>

<math>x = a_0 + \frac{1}{a_1 + \frac{1}{a_2 + \frac{1}{a_3 + a_4}}}</math>

Does things work after update someone wonders...
Hope the upgrade works!

<math>a^7</math>
<math>\sqrt{7}</math>
test

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Advanced Audio Coding

2005-11-06T02:31:14Z

Dura22: /* External References */

==Introduction==
'''AAC''' or 'Advanced Audio Coding' forms part of the latest specifications from the MPEG committee, and is their official successor to the popular [[MP3]] format. As with MP3, the AAC format is an international standard, and is backed by several big-name companies, including Dolby, Sony and Nokia.

With the 13 years that had passed since the creation of the MP3 format, many improvements had been realised leading to a seemingly complex specification with several flavours of AAC available. To potentially add to the confusion, AAC is usually wrapped inside an [[MP4]] container to provide tagging, seeking and possibly other benefits?? For this reason, AAC can also be referred to as MP4 audio..

There are several AAC encoders to choose from, coming from large names such as Apple ([[iTunes]]) , Real Networks and Nero AG (Creators of Nero Burning Rom), or the open source [http://www.audiocoding.com FAAC] which is analogous to the [[LAME]] encoder. AAC is supported on some hardware players, most notably the [[Apple iPod]] and some cell phones, and is available in Apple's online store.

In terms of quality, it outperforms MP3 by a nice margin, being on par with [[Ogg Vorbis]], [[WMA]] Pro and other modern codecs, and with added SBR coding (HE AAC) it can provide quite high quality at low bitrates.

===Pros===

* An international standard approved by the [http://www.iso.ch ISO]
* Flexible: supports several [[sampling rate]]s (8000-96000 Hz), bit depths, and [[multichannel]] (up to 48 channels)
* Several implementations, including a free and high quality one ([http://www.itunes.com iTunes])
* Reaches transparency in most samples and for most users at around 150kbps
* Part of [[MPEG-4]] specs
* Anyone can create its own implementation (specifications and demo sources available)
* Some portable players support it (Philips Expanium, [[Apple iPod]], cell phones from Nokia)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Cons===

* Problem cases that trip out all transform codecs
* Heavily patented
* Increased complexity
* '''AAC''' comes in different "flavors" (object types: '''AAC LC''', '''AAC HE''', '''AAC PS''' etc.). Many (especially portable) players only support LC (at the moment) so you can have files that are valid but your player won't play them.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technical Information==
'''AAC''' stands for 'Advanced Audio Coding' and is part of the [[MPEG-4]] Systems Standard. Originally known as MPEG-2 Non-Backwards Compatible (As apposed to MPEG-2 Backwards Compatible) it is the succesor to MPEG-1/2 Layer III ([[MP3]]). It uses the [[MP4]] [[container]] (which is based on Apple's [[MOV]] container) to store metadata (i.e. tag information).

As part of the MPEG-4 Systems Standard, an '''AAC''' encoded file can include up to 48 full-bandwith audio channels (up to 96 kHz) and 15 Low Frequency Enhancement channels (limited to 120 Hz) plus 15 data streams.

'''AAC''' encoding methods are organised into Profiles (MPEG-2) or Object Types (MPEG-4). These different Object Types are not necessarily compatible with each other and may not be playable with various decoders. Some of the various Object Types are:

* MPEG-2 AAC LC / Low Complexity
* MPEG-2 AAC Main
* MPEG-2 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LC / Low Complexity
* MPEG-4 AAC Main
* MPEG-4 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LTP / Long Term Prediction
* MPEG-4 AAC HE / High Efficiency
* MPEG-4 AAC LD / Low Delay

Different Object Types vary in complexity. Some take longer to encode/decode as a result of the different complexities. Furthermore, the benefits of the more complex profiles are often not worth the CPU power required to encode/decode them. As a result the Low Complexity/LC Object Type has become the profile used by most encoders and supported by most decoders. However, the High Efficiency (HE) Object Type has become more popular recently with its addition to the Nero '''AAC''' encoder.

Currently all players support the LC Object Type, although some will work on only MPEG2 or MPEG4 streams. Players based on the FAAD2 decoder (eg. [[foobar2000]], [[Winamp]] plugins) support almost all Object Types including HE '''AAC'''. 3ivX also supports all Object Types except SSR.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technologies used for compression==

* [[Huffman coding]]
* [[Quantization]] and scaling
* [[Joint stereo|M/S matrixing]]
* [[Intensity stereo]]
* Channel coupling
* Backward adaptive prediction
* Temporal Noise Shaping (TNS)
* Modified Discrete Cosine Transform (I[[MDCT]])
* Gain control and hybrid filter bank (polyphase quadrature filter (IPQF)+IMDCT)
* Long Term Predictor (LTP) - MPEG4 '''AAC''' only
* Perceptual Noise Substitution (PNS) - MPEG4 '''AAC''' only
* Spectral Band Replication ([[SBR]]) - HE '''AAC'''
* Parametric Stereo (PS) - HE '''AAC'''

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Encoders / Decoders (Supported Platforms)==

* [[Nero AAC]] (Win32)
* [[QuickTime AAC]] (Win32/MacOS X)
* [[FAAC]] [[FAAD]] (Multiplatform)
* HHI/zPlane [[Compaact!]] (Win32)
* [[PsyTEL]] (Win32)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==External References==

* [[AAC FAQ]]
* Known [[AAC implementations]].
* Read the [[AAC guide]] to learn how to obtain '''AAC'''/[[MP4]] files out of WAV files and CDs.
* Detailed '''AAC''' comparisons can be found at [http://www.rjamorim.com/test/ Roberto's listening tests page].

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Download page

2005-11-06T02:31:11Z

Dura22:

=Download Page=

All programs mentioned anywhere in the wiki can be downloaded here.

==CD ripping software==

* [[EAC]]: http://www.exactaudiocopy.de/

* [[CDex]]: http://cdexos.sourceforge.net/

* [[dBpowerAMP]]: http://www.dbpoweramp.com/

==Encoders, Decoders etc.==

All basic tools needed to make use of the audio formats supported here. ===[[MP3]] (LAME)===

* LAME encoder/decoder: [[Lame Compiles|Latest recommended version]]

===[[Ogg Vorbis]]===

Currently, all recommended Ogg Vorbis utilities are available at the [http://www.rarewares.org/ogg.html Rarewares Ogg Vorbis page]. The following tools are important: * Oggenc2.3
: A command-line Ogg Vorbis encoder that can be used with most CD rippers.

* OggDec
: Command-line decoder.

* OggDropXPd
: A (very cute-looking) drag'n'drop encoder/decoder with support for automatic tagging, renaming and playlist creation on encoding.

* Encoding DLLs
: DLLs that can be used for encoding within CDex or WinLame.

* VorbisGain
: The [[Replaygain]] utility for Ogg Vorbis.

===Musepack ([[MPC]])===

* MPC Encoder (mppenc): [http://www.saunalahti.fi/~cse/mpc/encoders/mppenc-windows-1.14.zip 1.14 Beta] / [http://www.saunalahti.fi/~cse/mpc/encoders/mppenc-windows-1.15r.zip 1.15r Alpha] (Both these versions are safe to use.)

* MPC Decoder (mppdec): [http://www.saunalahti.fi/~cse/mppdec.zip Download latest version]

* [[Replaygain]] utility: [http://www.saunalahti.fi/~cse/replaygain.zip Download latest version]

==Drivers (ASPI etc.)==

* VOB ASAPI Driver 1.3: [http://www.rarewares.org/files/ASAPI.exe download]

==Tagging utilities==

* Tag, by case: http://www.saunalahti.fi/~cse/html/tag.html

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Advanced Audio Coding

2005-11-06T02:31:09Z

Dura22: /* Encoders / Decoders (Supported Platforms) */

Advanced Audio Coding

2005-11-06T02:31:04Z

Dura22: /* Technologies used for compression */

==Introduction==
'''AAC''' or 'Advanced Audio Coding' forms part of the latest specifications from the MPEG committee, and is their official successor to the popular [[MP3]] format. As with MP3, the AAC format is an international standard, and is backed by several big-name companies, including Dolby, Sony and Nokia.

With the 13 years that had passed since the creation of the MP3 format, many improvements had been realised leading to a seemingly complex specification with several flavours of AAC available. To potentially add to the confusion, AAC is usually wrapped inside an [[MP4]] container to provide tagging, seeking and possibly other benefits?? For this reason, AAC can also be referred to as MP4 audio..

There are several AAC encoders to choose from, coming from large names such as Apple ([[iTunes]]) , Real Networks and Nero AG (Creators of Nero Burning Rom), or the open source [http://www.audiocoding.com FAAC] which is analogous to the [[LAME]] encoder. AAC is supported on some hardware players, most notably the [[Apple iPod]] and some cell phones, and is available in Apple's online store.

In terms of quality, it outperforms MP3 by a nice margin, being on par with [[Ogg Vorbis]], [[WMA]] Pro and other modern codecs, and with added SBR coding (HE AAC) it can provide quite high quality at low bitrates.

===Pros===

* An international standard approved by the [http://www.iso.ch ISO]
* Flexible: supports several [[sampling rate]]s (8000-96000 Hz), bit depths, and [[multichannel]] (up to 48 channels)
* Several implementations, including a free and high quality one ([http://www.itunes.com iTunes])
* Reaches transparency in most samples and for most users at around 150kbps
* Part of [[MPEG-4]] specs
* Anyone can create its own implementation (specifications and demo sources available)
* Some portable players support it (Philips Expanium, [[Apple iPod]], cell phones from Nokia)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Cons===

* Problem cases that trip out all transform codecs
* Heavily patented
* Increased complexity
* '''AAC''' comes in different "flavors" (object types: '''AAC LC''', '''AAC HE''', '''AAC PS''' etc.). Many (especially portable) players only support LC (at the moment) so you can have files that are valid but your player won't play them.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technical Information==
'''AAC''' stands for 'Advanced Audio Coding' and is part of the [[MPEG-4]] Systems Standard. Originally known as MPEG-2 Non-Backwards Compatible (As apposed to MPEG-2 Backwards Compatible) it is the succesor to MPEG-1/2 Layer III ([[MP3]]). It uses the [[MP4]] [[container]] (which is based on Apple's [[MOV]] container) to store metadata (i.e. tag information).

As part of the MPEG-4 Systems Standard, an '''AAC''' encoded file can include up to 48 full-bandwith audio channels (up to 96 kHz) and 15 Low Frequency Enhancement channels (limited to 120 Hz) plus 15 data streams.

'''AAC''' encoding methods are organised into Profiles (MPEG-2) or Object Types (MPEG-4). These different Object Types are not necessarily compatible with each other and may not be playable with various decoders. Some of the various Object Types are:

* MPEG-2 AAC LC / Low Complexity
* MPEG-2 AAC Main
* MPEG-2 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LC / Low Complexity
* MPEG-4 AAC Main
* MPEG-4 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LTP / Long Term Prediction
* MPEG-4 AAC HE / High Efficiency
* MPEG-4 AAC LD / Low Delay

Different Object Types vary in complexity. Some take longer to encode/decode as a result of the different complexities. Furthermore, the benefits of the more complex profiles are often not worth the CPU power required to encode/decode them. As a result the Low Complexity/LC Object Type has become the profile used by most encoders and supported by most decoders. However, the High Efficiency (HE) Object Type has become more popular recently with its addition to the Nero '''AAC''' encoder.

Currently all players support the LC Object Type, although some will work on only MPEG2 or MPEG4 streams. Players based on the FAAD2 decoder (eg. [[foobar2000]], [[Winamp]] plugins) support almost all Object Types including HE '''AAC'''. 3ivX also supports all Object Types except SSR.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technologies used for compression==

* [[Huffman coding]]
* [[Quantization]] and scaling
* [[Joint stereo|M/S matrixing]]
* [[Intensity stereo]]
* Channel coupling
* Backward adaptive prediction
* Temporal Noise Shaping (TNS)
* Modified Discrete Cosine Transform (I[[MDCT]])
* Gain control and hybrid filter bank (polyphase quadrature filter (IPQF)+IMDCT)
* Long Term Predictor (LTP) - MPEG4 '''AAC''' only
* Perceptual Noise Substitution (PNS) - MPEG4 '''AAC''' only
* Spectral Band Replication ([[SBR]]) - HE '''AAC'''
* Parametric Stereo (PS) - HE '''AAC'''

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Encoders / Decoders (Supported Platforms)==

* [[Nero AAC]] (Win32)
* [[QuickTime AAC]] (Win32/MacOS X)
* [[FAAC]] [[FAAD]] (Multiplatform)
* HHI/zPlane [[Compaact!]] (Win32)
* [[PsyTEL]] (Win32)

==External References==

* [[AAC FAQ]]
* Known [[AAC implementations]].
* Read the [[AAC guide]] to learn how to obtain '''AAC'''/[[MP4]] files out of WAV files and CDs.
* Detailed '''AAC''' comparisons can be found at [http://www.rjamorim.com/test/ Roberto's listening tests page].

Advanced Audio Coding

2005-11-06T02:30:53Z

Dura22: /* Technical Information */

==Introduction==
'''AAC''' or 'Advanced Audio Coding' forms part of the latest specifications from the MPEG committee, and is their official successor to the popular [[MP3]] format. As with MP3, the AAC format is an international standard, and is backed by several big-name companies, including Dolby, Sony and Nokia.

With the 13 years that had passed since the creation of the MP3 format, many improvements had been realised leading to a seemingly complex specification with several flavours of AAC available. To potentially add to the confusion, AAC is usually wrapped inside an [[MP4]] container to provide tagging, seeking and possibly other benefits?? For this reason, AAC can also be referred to as MP4 audio..

There are several AAC encoders to choose from, coming from large names such as Apple ([[iTunes]]) , Real Networks and Nero AG (Creators of Nero Burning Rom), or the open source [http://www.audiocoding.com FAAC] which is analogous to the [[LAME]] encoder. AAC is supported on some hardware players, most notably the [[Apple iPod]] and some cell phones, and is available in Apple's online store.

In terms of quality, it outperforms MP3 by a nice margin, being on par with [[Ogg Vorbis]], [[WMA]] Pro and other modern codecs, and with added SBR coding (HE AAC) it can provide quite high quality at low bitrates.

===Pros===

* An international standard approved by the [http://www.iso.ch ISO]
* Flexible: supports several [[sampling rate]]s (8000-96000 Hz), bit depths, and [[multichannel]] (up to 48 channels)
* Several implementations, including a free and high quality one ([http://www.itunes.com iTunes])
* Reaches transparency in most samples and for most users at around 150kbps
* Part of [[MPEG-4]] specs
* Anyone can create its own implementation (specifications and demo sources available)
* Some portable players support it (Philips Expanium, [[Apple iPod]], cell phones from Nokia)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Cons===

* Problem cases that trip out all transform codecs
* Heavily patented
* Increased complexity
* '''AAC''' comes in different "flavors" (object types: '''AAC LC''', '''AAC HE''', '''AAC PS''' etc.). Many (especially portable) players only support LC (at the moment) so you can have files that are valid but your player won't play them.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technical Information==
'''AAC''' stands for 'Advanced Audio Coding' and is part of the [[MPEG-4]] Systems Standard. Originally known as MPEG-2 Non-Backwards Compatible (As apposed to MPEG-2 Backwards Compatible) it is the succesor to MPEG-1/2 Layer III ([[MP3]]). It uses the [[MP4]] [[container]] (which is based on Apple's [[MOV]] container) to store metadata (i.e. tag information).

As part of the MPEG-4 Systems Standard, an '''AAC''' encoded file can include up to 48 full-bandwith audio channels (up to 96 kHz) and 15 Low Frequency Enhancement channels (limited to 120 Hz) plus 15 data streams.

'''AAC''' encoding methods are organised into Profiles (MPEG-2) or Object Types (MPEG-4). These different Object Types are not necessarily compatible with each other and may not be playable with various decoders. Some of the various Object Types are:

* MPEG-2 AAC LC / Low Complexity
* MPEG-2 AAC Main
* MPEG-2 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LC / Low Complexity
* MPEG-4 AAC Main
* MPEG-4 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LTP / Long Term Prediction
* MPEG-4 AAC HE / High Efficiency
* MPEG-4 AAC LD / Low Delay

Different Object Types vary in complexity. Some take longer to encode/decode as a result of the different complexities. Furthermore, the benefits of the more complex profiles are often not worth the CPU power required to encode/decode them. As a result the Low Complexity/LC Object Type has become the profile used by most encoders and supported by most decoders. However, the High Efficiency (HE) Object Type has become more popular recently with its addition to the Nero '''AAC''' encoder.

Currently all players support the LC Object Type, although some will work on only MPEG2 or MPEG4 streams. Players based on the FAAD2 decoder (eg. [[foobar2000]], [[Winamp]] plugins) support almost all Object Types including HE '''AAC'''. 3ivX also supports all Object Types except SSR.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technologies used for compression==

* [[Huffman coding]]
* [[Quantization]] and scaling
* [[Joint stereo|M/S matrixing]]
* [[Intensity stereo]]
* Channel coupling
* Backward adaptive prediction
* Temporal Noise Shaping (TNS)
* Modified Discrete Cosine Transform (I[[MDCT]])
* Gain control and hybrid filter bank (polyphase quadrature filter (IPQF)+IMDCT)
* Long Term Predictor (LTP) - MPEG4 '''AAC''' only
* Perceptual Noise Substitution (PNS) - MPEG4 '''AAC''' only
* Spectral Band Replication ([[SBR]]) - HE '''AAC'''
* Parametric Stereo (PS) - HE '''AAC'''

==Encoders / Decoders (Supported Platforms)==

* [[Nero AAC]] (Win32)
* [[QuickTime AAC]] (Win32/MacOS X)
* [[FAAC]] [[FAAD]] (Multiplatform)
* HHI/zPlane [[Compaact!]] (Win32)
* [[PsyTEL]] (Win32)

==External References==

* [[AAC FAQ]]
* Known [[AAC implementations]].
* Read the [[AAC guide]] to learn how to obtain '''AAC'''/[[MP4]] files out of WAV files and CDs.
* Detailed '''AAC''' comparisons can be found at [http://www.rjamorim.com/test/ Roberto's listening tests page].

MP4

2005-11-06T02:30:45Z

Dura22:

This is the global ''file extension'' for the [[MPEG-4]] [[container format]] including all kinds of multimedia content (video, natural and synthetic audio, 2D and 3D graphics, animated avatars, user interactivity etc.) that can be streamed over any kind of connection or network. The [http://www.chiariglione.org/mpeg/standards/mpeg-4/mpeg-4.htm#10.9 definition] of this file format is handled separately in the Systems part of the MPEG-4 standard. You can obtain the full specifications of this and other parts of the standard from the [http://www.iso.ch/iso/en/ISOOnline.frontpage ISO], either on a CD for a small fee or downloadable for free from their website and/or the FTP servers of the [[MPEG]] and MPEG Audio Subgroup.

Since MP4 is also based on the [[QuickTime]] file format ([[MOV]]), the resources available from Apple give a thorough insight into its internal structures (atoms etc.), too. Their developer documentations ("Inside QuickTime: QuickTime File Format" or "What's New in QuickTime 6") can be downloaded as PDF files from this site:

http://developer.apple.com/documentation/QuickTime/RM/PDF.htm

The additional file extensions *.m4a and *.m4p (as well as *.m4v) are used by Apple to differentiate between MP4 audio files created with iTunes4 (no Digital Rights Management) or downloaded from their new Music Service (copyright protected).

----

In the context of audio compression MP4 normally means "MPEG-4 [[AAC]]" audio files that do not differ in sound quality from "older" MPEG-2 AAC files, because the raw bitstream is exactly the same, only the file headers are different (i.e. if they have been encoded with the same codec and the same settings, e.g. with PsyTEL AACEnc or Nero's AAC plugin). But being a container format, a MP4 file can also contain a MPEG-2 AAC or even a MP3 bitstream, either alone or together with e.g. a MPEG-2 video bitstream. These different "Object Types" are always signaled in the header of a MP4 file, see e.g. the ADTS and ADIF headers of an AAC bitstream or take a look at a MP4 header with the -list option of mp4creator or mp4info (another MPEG4IP tool).

All MPEG-4 software players ([[Winamp]] and [[foobar2000]] with their appropriate plugins, [[QuickTime]] 6, [[Windows Media Player]] with EnvivioTV or [[3ivx]] DirectShow filter etc.) should play these MP4 audio files the same, because the [[AAC]] decoder part has been exactly defined by the MPEG since several years now.

Nevertheless this is only true for the Low Complexity / LC profile, so if you have encoded your AAC files (old or new) with another profile (Main, LTP, whatever), decoders that do not know these profiles like QuickTime 6 will refuse to play them. So it's not recommended to use these other profiles most of the time, because their effect is limited and the resulting problems (compatibility and others like higher usage of system resources) are just not worth it, at least not with audio content at normal bitrates (video files are another story).

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Advanced Audio Coding

2005-11-06T02:30:43Z

Dura22: /* Cons */

==Introduction==
'''AAC''' or 'Advanced Audio Coding' forms part of the latest specifications from the MPEG committee, and is their official successor to the popular [[MP3]] format. As with MP3, the AAC format is an international standard, and is backed by several big-name companies, including Dolby, Sony and Nokia.

With the 13 years that had passed since the creation of the MP3 format, many improvements had been realised leading to a seemingly complex specification with several flavours of AAC available. To potentially add to the confusion, AAC is usually wrapped inside an [[MP4]] container to provide tagging, seeking and possibly other benefits?? For this reason, AAC can also be referred to as MP4 audio..

There are several AAC encoders to choose from, coming from large names such as Apple ([[iTunes]]) , Real Networks and Nero AG (Creators of Nero Burning Rom), or the open source [http://www.audiocoding.com FAAC] which is analogous to the [[LAME]] encoder. AAC is supported on some hardware players, most notably the [[Apple iPod]] and some cell phones, and is available in Apple's online store.

In terms of quality, it outperforms MP3 by a nice margin, being on par with [[Ogg Vorbis]], [[WMA]] Pro and other modern codecs, and with added SBR coding (HE AAC) it can provide quite high quality at low bitrates.

===Pros===

* An international standard approved by the [http://www.iso.ch ISO]
* Flexible: supports several [[sampling rate]]s (8000-96000 Hz), bit depths, and [[multichannel]] (up to 48 channels)
* Several implementations, including a free and high quality one ([http://www.itunes.com iTunes])
* Reaches transparency in most samples and for most users at around 150kbps
* Part of [[MPEG-4]] specs
* Anyone can create its own implementation (specifications and demo sources available)
* Some portable players support it (Philips Expanium, [[Apple iPod]], cell phones from Nokia)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Cons===

* Problem cases that trip out all transform codecs
* Heavily patented
* Increased complexity
* '''AAC''' comes in different "flavors" (object types: '''AAC LC''', '''AAC HE''', '''AAC PS''' etc.). Many (especially portable) players only support LC (at the moment) so you can have files that are valid but your player won't play them.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technical Information==
'''AAC''' stands for 'Advanced Audio Coding' and is part of the [[MPEG-4]] Systems Standard. Originally known as MPEG-2 Non-Backwards Compatible (As apposed to MPEG-2 Backwards Compatible) it is the succesor to MPEG-1/2 Layer III ([[MP3]]). It uses the [[MP4]] [[container]] (which is based on Apple's [[MOV]] container) to store metadata (i.e. tag information).

As part of the MPEG-4 Systems Standard, an '''AAC''' encoded file can include up to 48 full-bandwith audio channels (up to 96 kHz) and 15 Low Frequency Enhancement channels (limited to 120 Hz) plus 15 data streams.

'''AAC''' encoding methods are organised into Profiles (MPEG-2) or Object Types (MPEG-4). These different Object Types are not necessarily compatible with each other and may not be playable with various decoders. Some of the various Object Types are:

* MPEG-2 AAC LC / Low Complexity
* MPEG-2 AAC Main
* MPEG-2 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LC / Low Complexity
* MPEG-4 AAC Main
* MPEG-4 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LTP / Long Term Prediction
* MPEG-4 AAC HE / High Efficiency
* MPEG-4 AAC LD / Low Delay

Different Object Types vary in complexity. Some take longer to encode/decode as a result of the different complexities. Furthermore, the benefits of the more complex profiles are often not worth the CPU power required to encode/decode them. As a result the Low Complexity/LC Object Type has become the profile used by most encoders and supported by most decoders. However, the High Efficiency (HE) Object Type has become more popular recently with its addition to the Nero '''AAC''' encoder.

Currently all players support the LC Object Type, although some will work on only MPEG2 or MPEG4 streams. Players based on the FAAD2 decoder (eg. [[foobar2000]], [[Winamp]] plugins) support almost all Object Types including HE '''AAC'''. 3ivX also supports all Object Types except SSR.

==Technologies used for compression==

* [[Huffman coding]]
* [[Quantization]] and scaling
* [[Joint stereo|M/S matrixing]]
* [[Intensity stereo]]
* Channel coupling
* Backward adaptive prediction
* Temporal Noise Shaping (TNS)
* Modified Discrete Cosine Transform (I[[MDCT]])
* Gain control and hybrid filter bank (polyphase quadrature filter (IPQF)+IMDCT)
* Long Term Predictor (LTP) - MPEG4 '''AAC''' only
* Perceptual Noise Substitution (PNS) - MPEG4 '''AAC''' only
* Spectral Band Replication ([[SBR]]) - HE '''AAC'''
* Parametric Stereo (PS) - HE '''AAC'''

==Encoders / Decoders (Supported Platforms)==

* [[Nero AAC]] (Win32)
* [[QuickTime AAC]] (Win32/MacOS X)
* [[FAAC]] [[FAAD]] (Multiplatform)
* HHI/zPlane [[Compaact!]] (Win32)
* [[PsyTEL]] (Win32)

==External References==

* [[AAC FAQ]]
* Known [[AAC implementations]].
* Read the [[AAC guide]] to learn how to obtain '''AAC'''/[[MP4]] files out of WAV files and CDs.
* Detailed '''AAC''' comparisons can be found at [http://www.rjamorim.com/test/ Roberto's listening tests page].

Advanced Audio Coding

2005-11-06T02:30:41Z

Dura22: /* Pros */

==Introduction==
'''AAC''' or 'Advanced Audio Coding' forms part of the latest specifications from the MPEG committee, and is their official successor to the popular [[MP3]] format. As with MP3, the AAC format is an international standard, and is backed by several big-name companies, including Dolby, Sony and Nokia.

With the 13 years that had passed since the creation of the MP3 format, many improvements had been realised leading to a seemingly complex specification with several flavours of AAC available. To potentially add to the confusion, AAC is usually wrapped inside an [[MP4]] container to provide tagging, seeking and possibly other benefits?? For this reason, AAC can also be referred to as MP4 audio..

There are several AAC encoders to choose from, coming from large names such as Apple ([[iTunes]]) , Real Networks and Nero AG (Creators of Nero Burning Rom), or the open source [http://www.audiocoding.com FAAC] which is analogous to the [[LAME]] encoder. AAC is supported on some hardware players, most notably the [[Apple iPod]] and some cell phones, and is available in Apple's online store.

In terms of quality, it outperforms MP3 by a nice margin, being on par with [[Ogg Vorbis]], [[WMA]] Pro and other modern codecs, and with added SBR coding (HE AAC) it can provide quite high quality at low bitrates.

===Pros===

* An international standard approved by the [http://www.iso.ch ISO]
* Flexible: supports several [[sampling rate]]s (8000-96000 Hz), bit depths, and [[multichannel]] (up to 48 channels)
* Several implementations, including a free and high quality one ([http://www.itunes.com iTunes])
* Reaches transparency in most samples and for most users at around 150kbps
* Part of [[MPEG-4]] specs
* Anyone can create its own implementation (specifications and demo sources available)
* Some portable players support it (Philips Expanium, [[Apple iPod]], cell phones from Nokia)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

===Cons===

* Problem cases that trip out all transform codecs
* Heavily patented
* Increased complexity
* '''AAC''' comes in different "flavors" (object types: '''AAC LC''', '''AAC HE''', '''AAC PS''' etc.). Many (especially portable) players only support LC (at the moment) so you can have files that are valid but your player won't play them.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technical Information==
'''AAC''' stands for 'Advanced Audio Coding' and is part of the [[MPEG-4]] Systems Standard. Originally known as MPEG-2 Non-Backwards Compatible (As apposed to MPEG-2 Backwards Compatible) it is the succesor to MPEG-1/2 Layer III ([[MP3]]). It uses the [[MP4]] [[container]] (which is based on Apple's [[MOV]] container) to store metadata (i.e. tag information).

As part of the MPEG-4 Systems Standard, an '''AAC''' encoded file can include up to 48 full-bandwith audio channels (up to 96 kHz) and 15 Low Frequency Enhancement channels (limited to 120 Hz) plus 15 data streams.

'''AAC''' encoding methods are organised into Profiles (MPEG-2) or Object Types (MPEG-4). These different Object Types are not necessarily compatible with each other and may not be playable with various decoders. Some of the various Object Types are:

* MPEG-2 AAC LC / Low Complexity
* MPEG-2 AAC Main
* MPEG-2 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LC / Low Complexity
* MPEG-4 AAC Main
* MPEG-4 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LTP / Long Term Prediction
* MPEG-4 AAC HE / High Efficiency
* MPEG-4 AAC LD / Low Delay

Different Object Types vary in complexity. Some take longer to encode/decode as a result of the different complexities. Furthermore, the benefits of the more complex profiles are often not worth the CPU power required to encode/decode them. As a result the Low Complexity/LC Object Type has become the profile used by most encoders and supported by most decoders. However, the High Efficiency (HE) Object Type has become more popular recently with its addition to the Nero '''AAC''' encoder.

Currently all players support the LC Object Type, although some will work on only MPEG2 or MPEG4 streams. Players based on the FAAD2 decoder (eg. [[foobar2000]], [[Winamp]] plugins) support almost all Object Types including HE '''AAC'''. 3ivX also supports all Object Types except SSR.

==Technologies used for compression==

* [[Huffman coding]]
* [[Quantization]] and scaling
* [[Joint stereo|M/S matrixing]]
* [[Intensity stereo]]
* Channel coupling
* Backward adaptive prediction
* Temporal Noise Shaping (TNS)
* Modified Discrete Cosine Transform (I[[MDCT]])
* Gain control and hybrid filter bank (polyphase quadrature filter (IPQF)+IMDCT)
* Long Term Predictor (LTP) - MPEG4 '''AAC''' only
* Perceptual Noise Substitution (PNS) - MPEG4 '''AAC''' only
* Spectral Band Replication ([[SBR]]) - HE '''AAC'''
* Parametric Stereo (PS) - HE '''AAC'''

==Encoders / Decoders (Supported Platforms)==

* [[Nero AAC]] (Win32)
* [[QuickTime AAC]] (Win32/MacOS X)
* [[FAAC]] [[FAAD]] (Multiplatform)
* HHI/zPlane [[Compaact!]] (Win32)
* [[PsyTEL]] (Win32)

==External References==

* [[AAC FAQ]]
* Known [[AAC implementations]].
* Read the [[AAC guide]] to learn how to obtain '''AAC'''/[[MP4]] files out of WAV files and CDs.
* Detailed '''AAC''' comparisons can be found at [http://www.rjamorim.com/test/ Roberto's listening tests page].

Advanced Audio Coding

2005-11-06T02:30:38Z

Dura22: /* Introduction */

==Introduction==
'''AAC''' or 'Advanced Audio Coding' forms part of the latest specifications from the MPEG committee, and is their official successor to the popular [[MP3]] format. As with MP3, the AAC format is an international standard, and is backed by several big-name companies, including Dolby, Sony and Nokia.

With the 13 years that had passed since the creation of the MP3 format, many improvements had been realised leading to a seemingly complex specification with several flavours of AAC available. To potentially add to the confusion, AAC is usually wrapped inside an [[MP4]] container to provide tagging, seeking and possibly other benefits?? For this reason, AAC can also be referred to as MP4 audio..

There are several AAC encoders to choose from, coming from large names such as Apple ([[iTunes]]) , Real Networks and Nero AG (Creators of Nero Burning Rom), or the open source [http://www.audiocoding.com FAAC] which is analogous to the [[LAME]] encoder. AAC is supported on some hardware players, most notably the [[Apple iPod]] and some cell phones, and is available in Apple's online store.

In terms of quality, it outperforms MP3 by a nice margin, being on par with [[Ogg Vorbis]], [[WMA]] Pro and other modern codecs, and with added SBR coding (HE AAC) it can provide quite high quality at low bitrates.

===Pros===

* An international standard approved by the [http://www.iso.ch ISO]
* Flexible: supports several [[sampling rate]]s (8000-96000 Hz), bit depths, and [[multichannel]] (up to 48 channels)
* Several implementations, including a free and high quality one ([http://www.itunes.com iTunes])
* Reaches transparency in most samples and for most users at around 150kbps
* Part of [[MPEG-4]] specs
* Anyone can create its own implementation (specifications and demo sources available)
* Some portable players support it (Philips Expanium, [[Apple iPod]], cell phones from Nokia)

===Cons===

* Problem cases that trip out all transform codecs
* Heavily patented
* Increased complexity
* '''AAC''' comes in different "flavors" (object types: '''AAC LC''', '''AAC HE''', '''AAC PS''' etc.). Many (especially portable) players only support LC (at the moment) so you can have files that are valid but your player won't play them.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Technical Information==
'''AAC''' stands for 'Advanced Audio Coding' and is part of the [[MPEG-4]] Systems Standard. Originally known as MPEG-2 Non-Backwards Compatible (As apposed to MPEG-2 Backwards Compatible) it is the succesor to MPEG-1/2 Layer III ([[MP3]]). It uses the [[MP4]] [[container]] (which is based on Apple's [[MOV]] container) to store metadata (i.e. tag information).

As part of the MPEG-4 Systems Standard, an '''AAC''' encoded file can include up to 48 full-bandwith audio channels (up to 96 kHz) and 15 Low Frequency Enhancement channels (limited to 120 Hz) plus 15 data streams.

'''AAC''' encoding methods are organised into Profiles (MPEG-2) or Object Types (MPEG-4). These different Object Types are not necessarily compatible with each other and may not be playable with various decoders. Some of the various Object Types are:

* MPEG-2 AAC LC / Low Complexity
* MPEG-2 AAC Main
* MPEG-2 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LC / Low Complexity
* MPEG-4 AAC Main
* MPEG-4 AAC SSR / Scalable Sampling Rate
* MPEG-4 AAC LTP / Long Term Prediction
* MPEG-4 AAC HE / High Efficiency
* MPEG-4 AAC LD / Low Delay

Different Object Types vary in complexity. Some take longer to encode/decode as a result of the different complexities. Furthermore, the benefits of the more complex profiles are often not worth the CPU power required to encode/decode them. As a result the Low Complexity/LC Object Type has become the profile used by most encoders and supported by most decoders. However, the High Efficiency (HE) Object Type has become more popular recently with its addition to the Nero '''AAC''' encoder.

Currently all players support the LC Object Type, although some will work on only MPEG2 or MPEG4 streams. Players based on the FAAD2 decoder (eg. [[foobar2000]], [[Winamp]] plugins) support almost all Object Types including HE '''AAC'''. 3ivX also supports all Object Types except SSR.

==Technologies used for compression==

* [[Huffman coding]]
* [[Quantization]] and scaling
* [[Joint stereo|M/S matrixing]]
* [[Intensity stereo]]
* Channel coupling
* Backward adaptive prediction
* Temporal Noise Shaping (TNS)
* Modified Discrete Cosine Transform (I[[MDCT]])
* Gain control and hybrid filter bank (polyphase quadrature filter (IPQF)+IMDCT)
* Long Term Predictor (LTP) - MPEG4 '''AAC''' only
* Perceptual Noise Substitution (PNS) - MPEG4 '''AAC''' only
* Spectral Band Replication ([[SBR]]) - HE '''AAC'''
* Parametric Stereo (PS) - HE '''AAC'''

==Encoders / Decoders (Supported Platforms)==

* [[Nero AAC]] (Win32)
* [[QuickTime AAC]] (Win32/MacOS X)
* [[FAAC]] [[FAAD]] (Multiplatform)
* HHI/zPlane [[Compaact!]] (Win32)
* [[PsyTEL]] (Win32)

==External References==

* [[AAC FAQ]]
* Known [[AAC implementations]].
* Read the [[AAC guide]] to learn how to obtain '''AAC'''/[[MP4]] files out of WAV files and CDs.
* Detailed '''AAC''' comparisons can be found at [http://www.rjamorim.com/test/ Roberto's listening tests page].

DBpoweramp

2005-11-06T02:30:31Z

Dura22: /* External References */

Often called a Swiss army knife of Audio, dMC is able to:

* Rip digitally sound from Audio CDs and store in a multitude of formats, dMC is the Fastest CD Ripper and now AccurateRip Compatible
* Convert from one format to another, just about every audio type is supported: mp3, mp4, Windows Media Audio (wma), Ogg Vorbis, AAC, Monkeys Audio, FLAC and many others [Codec downloads], whilst preserving ID Tags.
* Volume Normalize audio files.
* Windows Explorer Integration - right click Convert To & popup useful information on audio files (such as bitrate, length).
* ID tag editing [Power Pack Option].
* Record from LPs or anything [optional Auxiliary Input install].

=AccurateRip=

The philosophy behind AccurateRip is quite simple - each time an audio track is ripped (recorded by computer) it is compared with rips from other people, this allows a confidence report to be generated. The report might say that 4 other people had exactly the same results, this would guarantee your rip was without error, or the report could say that 3 other people disagree with your rip, the likely hood is that your CD has a scratch and should be cleaned.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=External References=

[[http://www.dbpoweramp.com/ dBpowerAMP]]

[[http://www.accuraterip.com/ AccurateRip]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

DBpoweramp

2005-11-06T02:30:22Z

Dura22: /* AccurateRip */

Help:Editing

2005-11-06T02:30:10Z

Dura22: /* Getting help */

=Official Guides=
* [http://en.wikipedia.org/wiki/Wikipedia:How_to_edit_a_page Quick Guide]
* [http://meta.wikipedia.org/wiki/MediaWiki_User%27s_Guide WikiMedia User's Guide]
* [http://meta.wikimedia.org/wiki/Help:Editing MediaWiki editing help].

=Word formatting=
; Emphasize
<nowiki>''Emphasize'', '''strongly''', '''''very strongly'''''</nowiki>
''Emphasize'', '''strongly''', '''''very strongly'''''

; HTML tags you can use

Typewriter font for technical terms
<nowiki><tt>monospace text</tt></nowiki>
<tt>monospace text</tt>

Small text
<nowiki><small>small text</small></nowiki>
<small>small text</small>

Strikethru text
<nowiki><s>strike out deleted material</s></nowiki>
<s>strike out deleted material</s>

=Headings=
''same as headlines/chapters/sections''

First, second and third level headings
=New section=

==Subsection==

===Sub-subsection===

A first level heading is for example the "Word formatting" heading on this page.
The "Bullet lists" heading on this page is an example of a 2rd level heading.

The "Table of contents" box you see at the top of this page will appear automatically when you have used 4 or more headings.
First level headings are shown as x, 2rd level as x.x and so on.

=Internal linking=
<nowiki>[[Main Page]]</nowiki>
Becomes a link to the [[Main Page]] of this Wiki.

<nowiki>[[MPC|Musepack]]</nowiki>
Becomes a link to the MPC page but Musepack is written instead like this: [[MPC|Musepack]]

A postfix added right after a normal internal link is added to the written word in the final document, but links to the page without the postfix.
<nowiki>[[Critical band]]s</nowiki>
Becomes: [[Critical band]]s

; Linking to a headline at a wiki page.
You can link to a headline on another wiki page.
<nowiki>[[AAC#What's the best AAC encoder?]]</nowiki>
Becomes at link to the headline "What's the best AAC encoder?" at the AAC page like this: [[AAC#What's the best AAC encoder?]]

You can also replace the text written on the final page.
<nowiki>[[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]</nowiki>
Becomes: [[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]

=External linking=
Remember to start with "<nowiki>http://</nowiki>".

; Bare URL
<nowiki>http://www.rarewares.org/</nowiki>
Becomes http://www.rarewares.org/

; Named link
<nowiki>[http://www.rarewares.org/ The best audio resource on the net]</nowiki>
Becomes [http://www.rarewares.org/ The best audio resource on the net]

=Lists=

==Bullet lists==
You can make bullet lists with "*".
<nowiki>* First level list object</nowiki>
<nowiki>** Second level list object</nowiki>
<nowiki>*** Third level list object</nowiki>
<nowiki>* Another first level list object</nowiki>

* First level list object
** Second level list object
*** Third level list object
* Another first level list object

==Numbered lists==
You can make numbered lists with "#".
<nowiki># First level list object</nowiki>
<nowiki>## Second level list object</nowiki>
<nowiki>### Third level list object</nowiki>
<nowiki># Another first level list object</nowiki>

# First level list object
## Second level list object
### Third level list object
# Another first level list object

==Mixed lists==
You can even make mixed lists like this.
* You can even do mixed lists
*# and nest them
*#* like this

* You can even do mixed lists
*# and nest them
*#* like this

==Definition lists==
;item
: the item's definition
;item
: the item's definition

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Images=
You can insert images using the syntax:
<nowiki>[[Image:filename|options|caption text]]</nowiki>
The last item added will always be considered the caption text.

==Stans alone image==
<nowiki>[[Image:Small_HA_logo.png]]</nowiki>
[[Image:Small_HA_logo.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Stans alone image with alt-text==
You add "|caption text" after the image link. This is the text most browsers will show when you hover over the image with the mouse.
<nowiki>[[Image:Small_HA_logo.png|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Image options==

[[Image:Small_HA_logo.png|thumb|The HA logo]]
; thumbnail, thumb
: Generates an automatically resized thumbnail image (either reduced or enlarged).
: Caption text is displayed directly underneath. An "enlarge"-icon is added.
: If you do not specify where the image should be place it will be places to the right.
: Example to the right (in this example the image is enlarged because it is small):
<nowiki>[[Image:Small_HA_logo.png|thumb|The HA logo]]</nowiki>

; right
: Makes the image right-aligned.

; left
: Same as above, but left aligned.

; center
: Same as above, but centered.

; none
: The image will be rendered inline, even if the thumbnail-option is set.

[[Image:Small_HA_logo.png|frame|The HA logo]]
; frame
: The image will have a frame, regardless of whether it is a thumb, and the caption text will be included as a visible caption.
: Example to the right:

; ''size''px
: Renders a version of the image that's ''[size]'' pixels wide (e.g. '150px').
: Height is computed to keep the aspect ratio (i.e. the shape of the image).
: This allows both size reduction and enlargement.

; Combining options
: You can combine the options as you like. Example (as you see below resizing is often not very good):
<nowiki>[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]

<nowiki>[[Image:Small_HA_logo.png|none|frame|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|none|frame|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Tables=
<nowiki>{| border="1" cellpadding="5" cellspacing="3"</nowiki>
<nowiki>| 1 || 2</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 3 || 4</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 5 || 6</nowiki>
<nowiki>|}</nowiki>
{| border="1" cellpadding="5" cellspacing="3"
| 1 || 2
|-
| 3 || 4
|-
| 5 || 6
|}

See also [http://meta.wikimedia.org/wiki/Help:Table WikiMedia table guide]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Additional hints=
You can avoid that the wiki system proccessing the text (to avoid unwanted formatting) by putting <nowiki><nowiki></nowiki></nowiki> around the text you want to parse directly.

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Getting help=
If you need help to work with the wiki you can do the following:
* Post at http://www.hydrogenaudio.org in the [http://www.hydrogenaudio.org/forums/index.php?showforum=36 Wiki Forum]
* PM "Jan S." at http://www.hydrogenaudio.org
* Email Jan S. at [[Image:Email.png|Email.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Help:Editing

2005-11-06T02:30:07Z

Dura22: /* Additional hints */

Glossary Of Audio Terms

2005-11-06T02:30:03Z

Dura22: /* W */

==A==

* [[AAC]]
* [[ABR]]
* [[ABX]]/[[ABX|ABX testing]]
* [[AC3]]
* [[Aliasing]]
* [[AltPresets]]
* [[Ambisonics]]
* [[Amplitude]]
* [[APE]] ([[Monkey's Audio]])
* [[APE Tags]]
* [[Artifact]]/[[Artifact|Distortion]]
* [[ATH]] (Absolute Threshold of Hearing)
* [[ASPI]] (CD-ROM Installation)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==B==

* [[Bandpass filter]]
* [[Bandstop filter]]/[[Bandstop filter|Band reject]]
* [[Bandwidth]]
* [[Bark]]
* [[Bit reservoir]]
* [[Bitrate]]
* [[Bit depth|Bits per sample]] / [[Bit depth]]
* [[Blind test]]
* [[Block switching]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==C==

* [[CBR]]/[[Constant bitrate]]/[[CBR|Constant bitrate coding]]
* [[Channel coupling]]
* [[Clipping]]
* [[Codec]]
* [[Container format]]
* [[Critical band]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==D==

* [[dB]]/[[dB|Decibel]]
* [[DC coefficient]]
* [[DCT]]
* [[DCT coefficient]]
* [[Digital Radio Mondiale|DRM]] (Digital Radio Mondiale)
* [[Digital Rights Management|DRM]] (Digital Rights Management)
* [[DSP]]
* [[DTS]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==F==

* [[FFT]]
* [[Filterbank]]
* [[FIR filter]] (Finite Impulse Response Filters)
* [[FLAC]]
* [[Frequency]]
* [[Frequency domain]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==H==

* [[Harmonics]]
* [[Highpass]]
* [[Huffman coding]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==I==

* [[ID3]]
* [[IIR filter]] (Infinite Impulse Response Filters)
* [[Impulse]]
* [[Intensity stereo]]
* [[Inverse mix]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==J==

* [[Joint stereo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==L==

* [[LFE]] (Low Frequency Extension)
* [[LPAC]]
* [[Long block]]
* [[Lossless]]
* [[Lossy]]
* [[Lowpass]]
* [[ATH|LTQ]] (Level of Threshold in Quiet)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==M==

* [[Masking]]
* [[MDCT]]
* [[Metadata]]
* [[Mid-side stereo]]
* [[Monkey's Audio]]
* [[MP3]] (MPEG 1 Audio Layer 3)
* [[MP3Pro]]
* [[Musepack|MPC]]/[[Musepack|MP+]]/[[Musepack]]/[[Musepack|Mpeg Plus]]
* [[Mpeg]] (Motion Picture Expert Group)
* [[MPEG-4]]
* [[Multichannel]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==N==

* [[Neural network]]
* [[Noise shaping]]
* [[Noise normalization]]
* [[Noise like signals]]
* [[Notch filter]]
* [[Nyquist rate]]/[[Nyquist frequency]]/[[Nyquist sampling theorem]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==O==

* [[Ogg]]
* [[Ogg Vorbis]]
* [[OptimFROG]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==P==

* [[Parametric stereo]]/[[PS]]
* [[PCM]]
* [[Point stereo]]
* [[Pre echo]]/[[Pre echo|Post echo]]
* [[Psychoacoustic]]
* [[Psychoacoustic model]]
* [[Pre-masking]]/[[Pre-masking|Post-masking]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Q==

* [[Quantize]]/[[Quantizer]]/[[Quantization]]
* [[Quantization noise]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==R==

* [[Range coding]]
* [[Rice coding]]
* [[Ringing]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==S==

* [[Sampling rate]]/[[Sampling rate|Sample rate]]/[[Sampling rate|Sampling frequency]]
* [[SBR]] (Spectral Band Replication)
* [[Scale factor]]/[[Scale factor|Scale factor band]]
* [[Short block]]
* [[Shorten]] ([[SHN]])
* [[Sigma Delta Modulation]]
* [[SNR]] (Signal-to-Noise Ratio)
* [[Spectrogram]]
* [[Streaming]]
* [[Subband]]
* [[SZIP]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==T==

* [[TTA]] '''T'''rue '''T'''ap '''A'''udio
* [[Temporal accuracy]]
* [[Temporal smearing]]
* [[Time domain]]
* [[Tonality]]/[[Tonality|Tonal signals]]/[[Tonality|Tonality estimation]]
* [[Transcoding]]
* [[Transform]]
* [[Transient]]
* [[Transient smearing]]
* [[Transparency]]
* [[Tremor]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==V==

* [[VBR]] (Variable Bitrate/Variable Bitrate Coding)
* [[Vector quantization]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==W==

* [[WAV]]
* [[Wavelets]]
* [[WavPack]]
* [[Window function]]
* [[WMA]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Help:Editing

2005-11-06T02:30:00Z

Dura22: /* Tables */

=Official Guides=
* [http://en.wikipedia.org/wiki/Wikipedia:How_to_edit_a_page Quick Guide]
* [http://meta.wikipedia.org/wiki/MediaWiki_User%27s_Guide WikiMedia User's Guide]
* [http://meta.wikimedia.org/wiki/Help:Editing MediaWiki editing help].

=Word formatting=
; Emphasize
<nowiki>''Emphasize'', '''strongly''', '''''very strongly'''''</nowiki>
''Emphasize'', '''strongly''', '''''very strongly'''''

; HTML tags you can use

Typewriter font for technical terms
<nowiki><tt>monospace text</tt></nowiki>
<tt>monospace text</tt>

Small text
<nowiki><small>small text</small></nowiki>
<small>small text</small>

Strikethru text
<nowiki><s>strike out deleted material</s></nowiki>
<s>strike out deleted material</s>

=Headings=
''same as headlines/chapters/sections''

First, second and third level headings
=New section=

==Subsection==

===Sub-subsection===

A first level heading is for example the "Word formatting" heading on this page.
The "Bullet lists" heading on this page is an example of a 2rd level heading.

The "Table of contents" box you see at the top of this page will appear automatically when you have used 4 or more headings.
First level headings are shown as x, 2rd level as x.x and so on.

=Internal linking=
<nowiki>[[Main Page]]</nowiki>
Becomes a link to the [[Main Page]] of this Wiki.

<nowiki>[[MPC|Musepack]]</nowiki>
Becomes a link to the MPC page but Musepack is written instead like this: [[MPC|Musepack]]

A postfix added right after a normal internal link is added to the written word in the final document, but links to the page without the postfix.
<nowiki>[[Critical band]]s</nowiki>
Becomes: [[Critical band]]s

; Linking to a headline at a wiki page.
You can link to a headline on another wiki page.
<nowiki>[[AAC#What's the best AAC encoder?]]</nowiki>
Becomes at link to the headline "What's the best AAC encoder?" at the AAC page like this: [[AAC#What's the best AAC encoder?]]

You can also replace the text written on the final page.
<nowiki>[[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]</nowiki>
Becomes: [[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]

=External linking=
Remember to start with "<nowiki>http://</nowiki>".

; Bare URL
<nowiki>http://www.rarewares.org/</nowiki>
Becomes http://www.rarewares.org/

; Named link
<nowiki>[http://www.rarewares.org/ The best audio resource on the net]</nowiki>
Becomes [http://www.rarewares.org/ The best audio resource on the net]

=Lists=

==Bullet lists==
You can make bullet lists with "*".
<nowiki>* First level list object</nowiki>
<nowiki>** Second level list object</nowiki>
<nowiki>*** Third level list object</nowiki>
<nowiki>* Another first level list object</nowiki>

* First level list object
** Second level list object
*** Third level list object
* Another first level list object

==Numbered lists==
You can make numbered lists with "#".
<nowiki># First level list object</nowiki>
<nowiki>## Second level list object</nowiki>
<nowiki>### Third level list object</nowiki>
<nowiki># Another first level list object</nowiki>

# First level list object
## Second level list object
### Third level list object
# Another first level list object

==Mixed lists==
You can even make mixed lists like this.
* You can even do mixed lists
*# and nest them
*#* like this

* You can even do mixed lists
*# and nest them
*#* like this

==Definition lists==
;item
: the item's definition
;item
: the item's definition

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Images=
You can insert images using the syntax:
<nowiki>[[Image:filename|options|caption text]]</nowiki>
The last item added will always be considered the caption text.

==Stans alone image==
<nowiki>[[Image:Small_HA_logo.png]]</nowiki>
[[Image:Small_HA_logo.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Stans alone image with alt-text==
You add "|caption text" after the image link. This is the text most browsers will show when you hover over the image with the mouse.
<nowiki>[[Image:Small_HA_logo.png|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Image options==

[[Image:Small_HA_logo.png|thumb|The HA logo]]
; thumbnail, thumb
: Generates an automatically resized thumbnail image (either reduced or enlarged).
: Caption text is displayed directly underneath. An "enlarge"-icon is added.
: If you do not specify where the image should be place it will be places to the right.
: Example to the right (in this example the image is enlarged because it is small):
<nowiki>[[Image:Small_HA_logo.png|thumb|The HA logo]]</nowiki>

; right
: Makes the image right-aligned.

; left
: Same as above, but left aligned.

; center
: Same as above, but centered.

; none
: The image will be rendered inline, even if the thumbnail-option is set.

[[Image:Small_HA_logo.png|frame|The HA logo]]
; frame
: The image will have a frame, regardless of whether it is a thumb, and the caption text will be included as a visible caption.
: Example to the right:

; ''size''px
: Renders a version of the image that's ''[size]'' pixels wide (e.g. '150px').
: Height is computed to keep the aspect ratio (i.e. the shape of the image).
: This allows both size reduction and enlargement.

; Combining options
: You can combine the options as you like. Example (as you see below resizing is often not very good):
<nowiki>[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]

<nowiki>[[Image:Small_HA_logo.png|none|frame|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|none|frame|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Tables=
<nowiki>{| border="1" cellpadding="5" cellspacing="3"</nowiki>
<nowiki>| 1 || 2</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 3 || 4</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 5 || 6</nowiki>
<nowiki>|}</nowiki>
{| border="1" cellpadding="5" cellspacing="3"
| 1 || 2
|-
| 3 || 4
|-
| 5 || 6
|}

See also [http://meta.wikimedia.org/wiki/Help:Table WikiMedia table guide]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Additional hints=
You can avoid that the wiki system proccessing the text (to avoid unwanted formatting) by putting <nowiki><nowiki></nowiki></nowiki> around the text you want to parse directly.

=Getting help=
If you need help to work with the wiki you can do the following:
* Post at http://www.hydrogenaudio.org in the [http://www.hydrogenaudio.org/forums/index.php?showforum=36 Wiki Forum]
* PM "Jan S." at http://www.hydrogenaudio.org
* Email Jan S. at [[Image:Email.png|Email.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Glossary Of Audio Terms

2005-11-06T02:29:56Z

Dura22: /* V */

Help:Editing

2005-11-06T02:29:53Z

Dura22: /* Image options */

=Official Guides=
* [http://en.wikipedia.org/wiki/Wikipedia:How_to_edit_a_page Quick Guide]
* [http://meta.wikipedia.org/wiki/MediaWiki_User%27s_Guide WikiMedia User's Guide]
* [http://meta.wikimedia.org/wiki/Help:Editing MediaWiki editing help].

=Word formatting=
; Emphasize
<nowiki>''Emphasize'', '''strongly''', '''''very strongly'''''</nowiki>
''Emphasize'', '''strongly''', '''''very strongly'''''

; HTML tags you can use

Typewriter font for technical terms
<nowiki><tt>monospace text</tt></nowiki>
<tt>monospace text</tt>

Small text
<nowiki><small>small text</small></nowiki>
<small>small text</small>

Strikethru text
<nowiki><s>strike out deleted material</s></nowiki>
<s>strike out deleted material</s>

=Headings=
''same as headlines/chapters/sections''

First, second and third level headings
=New section=

==Subsection==

===Sub-subsection===

A first level heading is for example the "Word formatting" heading on this page.
The "Bullet lists" heading on this page is an example of a 2rd level heading.

The "Table of contents" box you see at the top of this page will appear automatically when you have used 4 or more headings.
First level headings are shown as x, 2rd level as x.x and so on.

=Internal linking=
<nowiki>[[Main Page]]</nowiki>
Becomes a link to the [[Main Page]] of this Wiki.

<nowiki>[[MPC|Musepack]]</nowiki>
Becomes a link to the MPC page but Musepack is written instead like this: [[MPC|Musepack]]

A postfix added right after a normal internal link is added to the written word in the final document, but links to the page without the postfix.
<nowiki>[[Critical band]]s</nowiki>
Becomes: [[Critical band]]s

; Linking to a headline at a wiki page.
You can link to a headline on another wiki page.
<nowiki>[[AAC#What's the best AAC encoder?]]</nowiki>
Becomes at link to the headline "What's the best AAC encoder?" at the AAC page like this: [[AAC#What's the best AAC encoder?]]

You can also replace the text written on the final page.
<nowiki>[[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]</nowiki>
Becomes: [[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]

=External linking=
Remember to start with "<nowiki>http://</nowiki>".

; Bare URL
<nowiki>http://www.rarewares.org/</nowiki>
Becomes http://www.rarewares.org/

; Named link
<nowiki>[http://www.rarewares.org/ The best audio resource on the net]</nowiki>
Becomes [http://www.rarewares.org/ The best audio resource on the net]

=Lists=

==Bullet lists==
You can make bullet lists with "*".
<nowiki>* First level list object</nowiki>
<nowiki>** Second level list object</nowiki>
<nowiki>*** Third level list object</nowiki>
<nowiki>* Another first level list object</nowiki>

* First level list object
** Second level list object
*** Third level list object
* Another first level list object

==Numbered lists==
You can make numbered lists with "#".
<nowiki># First level list object</nowiki>
<nowiki>## Second level list object</nowiki>
<nowiki>### Third level list object</nowiki>
<nowiki># Another first level list object</nowiki>

# First level list object
## Second level list object
### Third level list object
# Another first level list object

==Mixed lists==
You can even make mixed lists like this.
* You can even do mixed lists
*# and nest them
*#* like this

* You can even do mixed lists
*# and nest them
*#* like this

==Definition lists==
;item
: the item's definition
;item
: the item's definition

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Images=
You can insert images using the syntax:
<nowiki>[[Image:filename|options|caption text]]</nowiki>
The last item added will always be considered the caption text.

==Stans alone image==
<nowiki>[[Image:Small_HA_logo.png]]</nowiki>
[[Image:Small_HA_logo.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Stans alone image with alt-text==
You add "|caption text" after the image link. This is the text most browsers will show when you hover over the image with the mouse.
<nowiki>[[Image:Small_HA_logo.png|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Image options==

[[Image:Small_HA_logo.png|thumb|The HA logo]]
; thumbnail, thumb
: Generates an automatically resized thumbnail image (either reduced or enlarged).
: Caption text is displayed directly underneath. An "enlarge"-icon is added.
: If you do not specify where the image should be place it will be places to the right.
: Example to the right (in this example the image is enlarged because it is small):
<nowiki>[[Image:Small_HA_logo.png|thumb|The HA logo]]</nowiki>

; right
: Makes the image right-aligned.

; left
: Same as above, but left aligned.

; center
: Same as above, but centered.

; none
: The image will be rendered inline, even if the thumbnail-option is set.

[[Image:Small_HA_logo.png|frame|The HA logo]]
; frame
: The image will have a frame, regardless of whether it is a thumb, and the caption text will be included as a visible caption.
: Example to the right:

; ''size''px
: Renders a version of the image that's ''[size]'' pixels wide (e.g. '150px').
: Height is computed to keep the aspect ratio (i.e. the shape of the image).
: This allows both size reduction and enlargement.

; Combining options
: You can combine the options as you like. Example (as you see below resizing is often not very good):
<nowiki>[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]

<nowiki>[[Image:Small_HA_logo.png|none|frame|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|none|frame|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Tables=
<nowiki>{| border="1" cellpadding="5" cellspacing="3"</nowiki>
<nowiki>| 1 || 2</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 3 || 4</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 5 || 6</nowiki>
<nowiki>|}</nowiki>
{| border="1" cellpadding="5" cellspacing="3"
| 1 || 2
|-
| 3 || 4
|-
| 5 || 6
|}

See also [http://meta.wikimedia.org/wiki/Help:Table WikiMedia table guide]

=Additional hints=
You can avoid that the wiki system proccessing the text (to avoid unwanted formatting) by putting <nowiki><nowiki></nowiki></nowiki> around the text you want to parse directly.

=Getting help=
If you need help to work with the wiki you can do the following:
* Post at http://www.hydrogenaudio.org in the [http://www.hydrogenaudio.org/forums/index.php?showforum=36 Wiki Forum]
* PM "Jan S." at http://www.hydrogenaudio.org
* Email Jan S. at [[Image:Email.png|Email.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

Glossary Of Audio Terms

2005-11-06T02:29:49Z

Dura22: /* T */

==A==

* [[AAC]]
* [[ABR]]
* [[ABX]]/[[ABX|ABX testing]]
* [[AC3]]
* [[Aliasing]]
* [[AltPresets]]
* [[Ambisonics]]
* [[Amplitude]]
* [[APE]] ([[Monkey's Audio]])
* [[APE Tags]]
* [[Artifact]]/[[Artifact|Distortion]]
* [[ATH]] (Absolute Threshold of Hearing)
* [[ASPI]] (CD-ROM Installation)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==B==

* [[Bandpass filter]]
* [[Bandstop filter]]/[[Bandstop filter|Band reject]]
* [[Bandwidth]]
* [[Bark]]
* [[Bit reservoir]]
* [[Bitrate]]
* [[Bit depth|Bits per sample]] / [[Bit depth]]
* [[Blind test]]
* [[Block switching]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==C==

* [[CBR]]/[[Constant bitrate]]/[[CBR|Constant bitrate coding]]
* [[Channel coupling]]
* [[Clipping]]
* [[Codec]]
* [[Container format]]
* [[Critical band]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==D==

* [[dB]]/[[dB|Decibel]]
* [[DC coefficient]]
* [[DCT]]
* [[DCT coefficient]]
* [[Digital Radio Mondiale|DRM]] (Digital Radio Mondiale)
* [[Digital Rights Management|DRM]] (Digital Rights Management)
* [[DSP]]
* [[DTS]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==F==

* [[FFT]]
* [[Filterbank]]
* [[FIR filter]] (Finite Impulse Response Filters)
* [[FLAC]]
* [[Frequency]]
* [[Frequency domain]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==H==

* [[Harmonics]]
* [[Highpass]]
* [[Huffman coding]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==I==

* [[ID3]]
* [[IIR filter]] (Infinite Impulse Response Filters)
* [[Impulse]]
* [[Intensity stereo]]
* [[Inverse mix]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==J==

* [[Joint stereo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==L==

* [[LFE]] (Low Frequency Extension)
* [[LPAC]]
* [[Long block]]
* [[Lossless]]
* [[Lossy]]
* [[Lowpass]]
* [[ATH|LTQ]] (Level of Threshold in Quiet)

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==M==

* [[Masking]]
* [[MDCT]]
* [[Metadata]]
* [[Mid-side stereo]]
* [[Monkey's Audio]]
* [[MP3]] (MPEG 1 Audio Layer 3)
* [[MP3Pro]]
* [[Musepack|MPC]]/[[Musepack|MP+]]/[[Musepack]]/[[Musepack|Mpeg Plus]]
* [[Mpeg]] (Motion Picture Expert Group)
* [[MPEG-4]]
* [[Multichannel]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==N==

* [[Neural network]]
* [[Noise shaping]]
* [[Noise normalization]]
* [[Noise like signals]]
* [[Notch filter]]
* [[Nyquist rate]]/[[Nyquist frequency]]/[[Nyquist sampling theorem]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==O==

* [[Ogg]]
* [[Ogg Vorbis]]
* [[OptimFROG]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==P==

* [[Parametric stereo]]/[[PS]]
* [[PCM]]
* [[Point stereo]]
* [[Pre echo]]/[[Pre echo|Post echo]]
* [[Psychoacoustic]]
* [[Psychoacoustic model]]
* [[Pre-masking]]/[[Pre-masking|Post-masking]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Q==

* [[Quantize]]/[[Quantizer]]/[[Quantization]]
* [[Quantization noise]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==R==

* [[Range coding]]
* [[Rice coding]]
* [[Ringing]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==S==

* [[Sampling rate]]/[[Sampling rate|Sample rate]]/[[Sampling rate|Sampling frequency]]
* [[SBR]] (Spectral Band Replication)
* [[Scale factor]]/[[Scale factor|Scale factor band]]
* [[Short block]]
* [[Shorten]] ([[SHN]])
* [[Sigma Delta Modulation]]
* [[SNR]] (Signal-to-Noise Ratio)
* [[Spectrogram]]
* [[Streaming]]
* [[Subband]]
* [[SZIP]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==T==

* [[TTA]] '''T'''rue '''T'''ap '''A'''udio
* [[Temporal accuracy]]
* [[Temporal smearing]]
* [[Time domain]]
* [[Tonality]]/[[Tonality|Tonal signals]]/[[Tonality|Tonality estimation]]
* [[Transcoding]]
* [[Transform]]
* [[Transient]]
* [[Transient smearing]]
* [[Transparency]]
* [[Tremor]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==V==

* [[VBR]] (Variable Bitrate/Variable Bitrate Coding)
* [[Vector quantization]]

==W==

* [[WAV]]
* [[Wavelets]]
* [[WavPack]]
* [[Window function]]
* [[WMA]]

Help:Editing

2005-11-06T02:29:37Z

Dura22: /* Stans alone image with alt-text */

=Official Guides=
* [http://en.wikipedia.org/wiki/Wikipedia:How_to_edit_a_page Quick Guide]
* [http://meta.wikipedia.org/wiki/MediaWiki_User%27s_Guide WikiMedia User's Guide]
* [http://meta.wikimedia.org/wiki/Help:Editing MediaWiki editing help].

=Word formatting=
; Emphasize
<nowiki>''Emphasize'', '''strongly''', '''''very strongly'''''</nowiki>
''Emphasize'', '''strongly''', '''''very strongly'''''

; HTML tags you can use

Typewriter font for technical terms
<nowiki><tt>monospace text</tt></nowiki>
<tt>monospace text</tt>

Small text
<nowiki><small>small text</small></nowiki>
<small>small text</small>

Strikethru text
<nowiki><s>strike out deleted material</s></nowiki>
<s>strike out deleted material</s>

=Headings=
''same as headlines/chapters/sections''

First, second and third level headings
=New section=

==Subsection==

===Sub-subsection===

A first level heading is for example the "Word formatting" heading on this page.
The "Bullet lists" heading on this page is an example of a 2rd level heading.

The "Table of contents" box you see at the top of this page will appear automatically when you have used 4 or more headings.
First level headings are shown as x, 2rd level as x.x and so on.

=Internal linking=
<nowiki>[[Main Page]]</nowiki>
Becomes a link to the [[Main Page]] of this Wiki.

<nowiki>[[MPC|Musepack]]</nowiki>
Becomes a link to the MPC page but Musepack is written instead like this: [[MPC|Musepack]]

A postfix added right after a normal internal link is added to the written word in the final document, but links to the page without the postfix.
<nowiki>[[Critical band]]s</nowiki>
Becomes: [[Critical band]]s

; Linking to a headline at a wiki page.
You can link to a headline on another wiki page.
<nowiki>[[AAC#What's the best AAC encoder?]]</nowiki>
Becomes at link to the headline "What's the best AAC encoder?" at the AAC page like this: [[AAC#What's the best AAC encoder?]]

You can also replace the text written on the final page.
<nowiki>[[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]</nowiki>
Becomes: [[AAC#What's the best AAC encoder?|Read about the best AAC encoder]]

=External linking=
Remember to start with "<nowiki>http://</nowiki>".

; Bare URL
<nowiki>http://www.rarewares.org/</nowiki>
Becomes http://www.rarewares.org/

; Named link
<nowiki>[http://www.rarewares.org/ The best audio resource on the net]</nowiki>
Becomes [http://www.rarewares.org/ The best audio resource on the net]

=Lists=

==Bullet lists==
You can make bullet lists with "*".
<nowiki>* First level list object</nowiki>
<nowiki>** Second level list object</nowiki>
<nowiki>*** Third level list object</nowiki>
<nowiki>* Another first level list object</nowiki>

* First level list object
** Second level list object
*** Third level list object
* Another first level list object

==Numbered lists==
You can make numbered lists with "#".
<nowiki># First level list object</nowiki>
<nowiki>## Second level list object</nowiki>
<nowiki>### Third level list object</nowiki>
<nowiki># Another first level list object</nowiki>

# First level list object
## Second level list object
### Third level list object
# Another first level list object

==Mixed lists==
You can even make mixed lists like this.
* You can even do mixed lists
*# and nest them
*#* like this

* You can even do mixed lists
*# and nest them
*#* like this

==Definition lists==
;item
: the item's definition
;item
: the item's definition

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Images=
You can insert images using the syntax:
<nowiki>[[Image:filename|options|caption text]]</nowiki>
The last item added will always be considered the caption text.

==Stans alone image==
<nowiki>[[Image:Small_HA_logo.png]]</nowiki>
[[Image:Small_HA_logo.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Stans alone image with alt-text==
You add "|caption text" after the image link. This is the text most browsers will show when you hover over the image with the mouse.
<nowiki>[[Image:Small_HA_logo.png|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

==Image options==

[[Image:Small_HA_logo.png|thumb|The HA logo]]
; thumbnail, thumb
: Generates an automatically resized thumbnail image (either reduced or enlarged).
: Caption text is displayed directly underneath. An "enlarge"-icon is added.
: If you do not specify where the image should be place it will be places to the right.
: Example to the right (in this example the image is enlarged because it is small):
<nowiki>[[Image:Small_HA_logo.png|thumb|The HA logo]]</nowiki>

; right
: Makes the image right-aligned.

; left
: Same as above, but left aligned.

; center
: Same as above, but centered.

; none
: The image will be rendered inline, even if the thumbnail-option is set.

[[Image:Small_HA_logo.png|frame|The HA logo]]
; frame
: The image will have a frame, regardless of whether it is a thumb, and the caption text will be included as a visible caption.
: Example to the right:

; ''size''px
: Renders a version of the image that's ''[size]'' pixels wide (e.g. '150px').
: Height is computed to keep the aspect ratio (i.e. the shape of the image).
: This allows both size reduction and enlargement.

; Combining options
: You can combine the options as you like. Example (as you see below resizing is often not very good):
<nowiki>[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|50px|left|none|The HA logo]]

<nowiki>[[Image:Small_HA_logo.png|none|frame|The HA logo]]</nowiki>
[[Image:Small_HA_logo.png|none|frame|The HA logo]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>

=Tables=
<nowiki>{| border="1" cellpadding="5" cellspacing="3"</nowiki>
<nowiki>| 1 || 2</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 3 || 4</nowiki>
<nowiki>|-</nowiki>
<nowiki>| 5 || 6</nowiki>
<nowiki>|}</nowiki>
{| border="1" cellpadding="5" cellspacing="3"
| 1 || 2
|-
| 3 || 4
|-
| 5 || 6
|}

See also [http://meta.wikimedia.org/wiki/Help:Table WikiMedia table guide]

=Additional hints=
You can avoid that the wiki system proccessing the text (to avoid unwanted formatting) by putting <nowiki><nowiki></nowiki></nowiki> around the text you want to parse directly.

=Getting help=
If you need help to work with the wiki you can do the following:
* Post at http://www.hydrogenaudio.org in the [http://www.hydrogenaudio.org/forums/index.php?showforum=36 Wiki Forum]
* PM "Jan S." at http://www.hydrogenaudio.org
* Email Jan S. at [[Image:Email.png|Email.png]]

<div id="wikitikitavi" style="overflow:auto; height: 1px; ">
[[http://WTHP1.coolhost.biz] [WTHPD1]]
[http://WTHP2.coolhost.biz WTHPD2]
[[http://WTHP3.coolhost.biz | WTHPD3]]
[http://WTHP4.coolhost.biz | WTHPD4]
[WTHPD5 | http://WTHP5.coolhost.biz]
[[http://WTHP6.coolhost.biz WTHPD6]]
[[WTHPD7|http://WTHP7.coolhost.biz]]
http://WTHP8.coolhost.biz
</div>