Hydrogenaudio Knowledgebase - User contributions [en]

Topic Index

2004-10-18T11:20:15Z

Latexxx: /* Rippers */

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage old material] and how to reorganize things in a more efficient manner.

* 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==
===Guides===
* [[Create_LongTerm_Archive|Create a long-term archive]]

===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''
''Why not add supported platforms after the name of the tool?''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]] (Win32/Posix)

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]] (Dos/Win32/Posix)

=====Lossy=====

* [[FAAC]] ([[AAC]]) (Win32/Posix)

* [[LAME]] ([[MP3]]) (Win32/Posix)

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]]) (Win32/Posix)

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)
* [[iTunes]] (Win32/OsX)
* [[cdparanoia]] (Posix)

====Players====

===== Windows =====

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

* [[Quintessential Player]]

=====Linux/BSD=====

* [[Rhythmbox]]

* [[Muine]]

* [[XMMS]]

* [[wxMusik]]

* [[Beep Media Player]] (BMP)

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

* [[iTunes]]

* [[Whamb]]

=====Other=====

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

'''Portable Flash'''

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

* [[Creative MuVo]]

* [[Rio Carbon]]

'''Portable HD'''

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

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

'''Portable CD'''

'''Car Players'''

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

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

'''Lossy'''
*[[MP3]]

*[[AAC]]

*[[Ogg Vorbis]]

*[[Musepack]]

*[[WMA]]

*[[ATRAC3]]

'''Lossless'''
*[[FLAC]]

*[[LA]]

*[[Monkey's Audio]]

*[[OptimFROG]]

*[[WavPack]]

*[[Shorten]]

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===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 it's 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)

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]
* [[Vorbis Comment]]

X Multimedia System

2004-10-17T06:53:50Z

Latexxx:

'''XMMS''' is an open source audio player for Posix style platforms modelled upon [[Winamp]].

=== Features ===

* Winamp 2 skin support

=== Supported formats ===

==== Playback ====

* [[MP3]], [[WAV]], [[AU]], [[Ogg Vorbis]], [[MP2]], Mod, XM, X3M, MED, IT, STM
* Audio CD

=== Supported languages ===

* English
=== Supported platforms ===

* Linux/BSD
* Mac OS X
* Solaris

=== External links ===

[http://www.xmms.org XMMS: Homepage]

[http://www.xmms.org/download.php XMMS: Download]

{{stub}}

X Multimedia System

2004-10-17T06:53:21Z

Latexxx:

'''XMMS''' is an open source audio player for Posix style platforms modelled upon [[Winamp]].

=== Features ===
----

* Winamp 2 skin support

=== Supported formats ===
----

==== Playback ====

* [[MP3]], [[WAV]], [[AU]], [[Ogg Vorbis]], [[MP2]], Mod, XM, X3M, MED, IT, STM
* Audio CD

=== Supported languages ===
----

* English
=== Supported platforms ===
----

* Linux/BSD
* Mac OS X
* Solaris

=== External links ===
----
[http://www.xmms.org XMMS: Homepage]

[http://www.xmms.org/download.php XMMS: Download]

{{stub}}

Matroska

2004-10-16T14:02:08Z

Latexxx:

'''Matroska/матрёшка''' is an extensible open standard audio/video container which is intended to replace avi format. Matroska is based on [[EBML]], a binary variation of XML.

Matroska supports multiple video/audio formats and is supposed to be very extensible and future proof.

http://www.matroska.org

==Tools==

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

{{Stub}}

Topic Index

2004-10-16T13:53:17Z

Latexxx: /* Audio Software */

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage old material] and how to reorganize things in a more efficient manner.

* 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==
===Guides===
===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''
''Why not add supported platforms after the name of the tool?''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]] (Win32/Posix)

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]] (Dos/Win32/Posix)

=====Lossy=====

* [[FAAC]] ([[AAC]]) (Win32/Posix)

* [[LAME]] ([[MP3]]) (Win32/Posix)

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]]) (Win32/Posix)

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)
* [[iTunes]] (Win32/OsX)

====Players====

===== Windows =====

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

* [[Quintessential Player]]

=====Linux/BSD=====

* [[Rhythmbox]]

* [[Muine]]

* [[XMMS]]

* [[wxMusik]]

* [[Beep Media Player]] (BMP)

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

* [[iTunes]]

* [[Whamb]]

=====Other=====

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

'''Portable Flash'''

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

* [[Creative MuVo]]

* [[Rio Carbon]]

'''Portable HD'''

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

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[Rio Karma]]

* [[iAudio M3]]

'''Portable CD'''

'''Car Players'''

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

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

'''Lossy'''
*[[MP3]]

*[[AAC]]

*[[Ogg Vorbis]]

'''Lossless'''
*[[FLAC]]

*[[LA]]

*[[Monkey's Audio]]

*[[OptimFROG]]

*[[Wavpack]]

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===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 it's 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)

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]
* [[Vorbis Comment]]

ABX

2004-10-16T07:00:38Z

Latexxx:

See [http://www.pcabx.com/ Arny Krueger's pc-abx site.]

ABX is a method for determining by listening whether two wav files are audibly different from each other. The method is most useful for listening to potential differences near the threshold of audibility. A key feature of this method is that the tests are performed "[[blindtest|blind]]," or without the listener's knowledge of what the file-under-test is. Another key feature is that the influence of chance on the results can be reduced by performing multiple tests (trials).

The tester assigns one file to the "a" button, the other file to the "b" button, and then the abx program randomly assigns either the first or the second file to the "x" button. The listener can listen to a, b, or x, in any order, as many times as he wishes, then decides whether x is the same as a or the same as b. That's one trial.

An ABX session consists of multiple trials to reduce the probability that a particular result is the result of chance rather than the listener actually hearing a difference. For example, if a listener correctly identifies x after only one trial, the probability of that occurring by chance is 50%. However, if the listener were to correctly identify x five times out of five trials, the probability of that occurring by chance is 0.5^5 = 0.03 (3%).

ff123 has a [http://ff123.net/abx/abx.html page] which calculates (by simulation) the type 1 error, or the probability of concluding that a perceptible difference exists when one does not:

<div style="border: 1px dashed #000000; height: 550px; margin: 0px auto; padding: 20px; width: 500px;"><iframe style="height: 100%; width: 100%" src="<nowiki>http://ff123.net/abx/abx.html</nowiki>"></iframe></div>

''A difference is concluded to be heard when 13 correct identifications out of 16 trials is achieved. 0.01 is used as the critical type I error.''

In ''sensory evaluation techniques, 3rd ed.'', by Meilgaard, Civille, and Carr, this type of test is referred to as a "duo-trio," but the procedure is the inverse of the abx, and multiple people are used instead of multiple trials.

;Quote: : ''"Present to each subject an identified reference sample, followed by two coded samples, one of which matches the reference sample. Ask subjects to indicate which coded sample matches the reference. Count the number of correct replies and refer to table t10 for interpretation."''

;Meilgaard, et al, go on to state that; quote: : ''"As a general rule, the minimum is 16 subjects, but for less than 28, the beta error is high. Discrimination is much improved if 32, 40, or a larger number can be employed."''

Note: The beta error is the type II error, or the probability of concluding that no perceptible difference exists when one does.

Since ABX tests typically involve only a single listener performing multiple trials, the number of trials should be kept reasonably small to prevent listener fatigue from affecting the results. 16 trials is generally agreed to provide a good balance, and corresponds with Meilgaard's recommendation for multiple listeners in a duo-trio test, at least as far as minimizing type I errors is concerned. Typically, 0.01 is used as the critical type I error. So that would mean that a difference is concluded to be heard when 13 correct identifications out of 16 is achieved.

=Programs for Performing Blind Listening Tests=

* [http://www.kikeg.arrakis.es/winabx/ WinABX]/[http://www.kikeg.arrakis.es/winabx WinABA]
* [http://ff123.net/abchr/abchr.html ABC/HR Blind Audio Comparison and Rating]
* [http://www.pcabx.com/ PC ABX and ABX info]

Average Bitrate

2004-10-16T06:59:59Z

Latexxx:

In ABR coding, the encoder will maintain an average [[bitrate]] while using higher [[bitrate | bitrates]] for the parts of your music that are less compressible. The result will be of higher quality than [[CBR]] encoding but the average file size will remain predictable, so this mode is highly recommended over [[CBR]].

Rio Karma

2004-10-15T11:19:14Z

Latexxx:

'''The [http://www.digitalnetworksna.com/shop/_templates/item_main_Rio.asp?model=261 Rio Karma]''' is a portable HD based player by [http://www.digitalnetworksna.com/rioaudio/default.asp?cat=35 RioAudio].

It features 20GB capacity, [[FLAC]], [[MP3]], [[Ogg Vorbis]] and [[WMA]] playback.

Advanced Audio Coding

2004-10-15T09:56:52Z

Latexxx:

'''AAC''' stands for MPEG-2/MPEG-4 Advanced Audio Coding. It is an ISO standard for encoding audio.

==Encoders==
* [[Nero]]
* [[ITunes|iTunes/Quick Time]] (free as in beer)
* [[FAAC]] (free as in GNU) [http://www.audiocoding.com]
* [[Real Producer|Real/Helix Producer]] (free as in beer) [http://helixcommunity.org]

==Decoders==
* [[FAAD]]

Topic Index

2004-10-15T09:56:26Z

Latexxx: /* Digital Audio Players */

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage old material] and how to reorganize things in a more efficient manner.

* 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==
===Guides===
===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]]

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]]

=====Lossy=====

* [[FAAC]] ([[AAC]])

* [[LAME]] ([[MP3]])

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]])

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)
* [[iTunes]]

====Players====

''Windows''

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

* [[Quintessential Player]]

''Linux/BSD''

* [[Rhythmbox]]

* [[Muine]]

* [[wxMusik]]

''Mac OS X''

* [[Whamb]]

''Other''

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

'''Portable Flash'''

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

* [[Creative MuVo]]

'''Portable HD'''

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

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[Rio Karma]]

'''Portable CD'''

'''Car Players'''

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

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

'''Lossy'''
*[[MP3]]

*[[AAC]]

*[[Ogg Vorbis]]

'''Lossless'''
*[[FLAC]]

*[[LA]]

*[[Monkey's Audio]]

*[[OptimFROG]]

*[[Wavpack]]

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===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 it's 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 (Lot's 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)

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]

Topic Index

2004-10-15T09:44:57Z

Latexxx:

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage old material] and how to reorganize things in a more efficient manner.

* 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==
===Guides===
===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]]

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]]

=====Lossy=====

* [[FAAC]] ([[AAC]])

* [[LAME]] ([[MP3]])

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]])

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)
* [[iTunes]]

====Players====

''Windows''

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

* [[Quintessential Player]]

''Linux/BSD''

* [[Rhythmbox]]

* [[Muine]]

* [[wxMusik]]

''Mac OS X''

* [[Whamb]]

''Other''

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

'''Portable Flash'''

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

* Creative MuVo

'''Portable HD'''

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

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[Rio Karma]]

'''Portable CD'''

'''Car Players'''

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

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

'''Lossy'''
*[[MP3]]

*[[AAC]]

'''Lossless'''
*[[FLAC]]

*[[LA]]

*[[Monkey's Audio]]

*[[OptimFROG]]

*[[Wavpack]]

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===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 it's 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 (Lot's 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)

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]

Vorbis

2004-10-15T09:41:50Z

Latexxx:

'''Ogg Vorbis''' [http://www.vorbis.com] is an open, general purpose, lossy audio compression format developed by the Xiph.org Foundation [http://www.xiph.org].
Vorbis is considered patent free and the main Vorbis library is licensed under a BSD style license.

=== Software ===
----
'''Encoders'''

* [[oggenc]]

'''Decoders'''
*

Vorbis

2004-10-15T09:36:55Z

Latexxx:

'''Ogg Vorbis''' is a open, general purpose, lossy audio compression format developed by the Xiph.org Foundation.

=== Software ===
----
'''Encoders'''

* [[oggenc]]

'''Decoders'''
*

=== External links ===
----

[http://www.vorbis.com Vorbis.com]

[http://www.xiph.org The Xiph.org Foundation]

Topic Index

2004-10-15T08:10:23Z

Latexxx:

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage old material] and how to reorganize things in a more efficient manner.

* 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.

==General Information==
===Guides===
===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]]

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]]

=====Lossy=====

* [[FAAC]] ([[AAC]])

* [[LAME]] ([[MP3]])

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]])

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)
* [[iTunes]]

====Players====

''Windows''

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

* [[Quintessential Player]]

''Linux/BSD''

* [[Rhythmbox]]

* [[Muine]]

* [[wxMusik]]

''Mac OS X''

* [[Whamb]]

''Other''

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

'''Portable Flash'''

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

* Creative MuVo

'''Portable HD'''

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

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[Rio Karma]]

'''Portable CD'''

'''Car Players'''

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

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

'''Lossy'''
*[[MP3]]

*[[AAC]]

'''Lossless'''
*[[FLAC]]

*[[LA]]

*[[Monkey's Audio]]

*[[OptimFROG]]

*[[Wavpack]]

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===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 it's 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 (Lot's 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)

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]

Matroska

2004-10-15T08:03:15Z

Latexxx:

ID3

2004-10-15T07:54:59Z

Latexxx:

'''ID3''' is one of the oldest ways of storing metadata. ID3 is intended to be used with mp3 files only.

http://www.id3.org

Topic Index

2004-10-15T07:52:48Z

Latexxx: /* Video */

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [[http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage|old material]] and how to reorganize things in a more efficient manner.

* 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.

==General Information==
===Guides===
===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]]

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]]

=====Lossy=====

* [[FAAC]] ([[AAC]])

* [[LAME]] ([[MP3]])

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]])

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)
* [[iTunes]]

====Players====

''Windows''

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

* [[Quintessential Player]]

''Linux/BSD''

* [[Rhythmbox]]

* [[Muine]]

* [[wxMusik]]

''Mac OS X''

* [[Whamb]]

''Other''

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

'''Portable Flash'''

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

* Creative MuVo

'''Portable HD'''

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

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[Rio Karma]]

'''Portable CD'''

'''Car Players'''

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

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

'''Lossy'''
*[[MP3]]

*[[AAC]]

'''Lossless'''
*[[FLAC]]

*[[LA]]

*[[Monkey's Audio]]

*[[OptimFROG]]

*[[Wavpack]]

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===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 it's 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 (Lot's 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)

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]

Matroska

2004-10-15T07:52:10Z

Latexxx:

'''Matroska''' is an extensible open standard audio/video container which is intended to replace avi format. Matroska is based on [[EBML]], a binary variation of XML.

Matroska supports multiple video/audio formats and is supposed to be very extensible and future proof.

http://www.matroska.org

==Tools==

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

Topic Index

2004-10-15T06:45:06Z

Latexxx: /* Websites */

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [[http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage|old material]] and how to reorganize things in a more efficient manner.

* 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.

==General Information==
===Guides===
===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]]

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]]

=====Lossy=====

* [[FAAC]] ([[AAC]])

* [[LAME]] ([[MP3]])

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]])

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)
* [[iTunes]]

====Players====

''Windows''

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

* [[Quintessential Player]]

''Linux/BSD''

* [[Rhythmbox]]

* [[Muine]]

* [[wxMusik]]

''Mac OS X''

* [[Whamb]]

''Other''

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

'''Portable Flash'''

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

* Creative MuVo

'''Portable HD'''

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

* [[Apple iPod]]

* [[iRiver H-Series]]

* [[Rio Karma]]

'''Portable CD'''

'''Car Players'''

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

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

'''Lossy'''
*[[MP3]]

*[[AAC]]

'''Lossless'''
*[[FLAC]]

*[[LA]]

*[[Monkey's Audio]]

*[[OptimFROG]]

*[[Wavpack]]

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===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 it's 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 (Lot's 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)

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]

Digital Radio Mondiale

2004-10-15T06:43:03Z

Latexxx:

'''Digital Radio Mondiale''' is a digital AM broadcasting system. DRM is based on [[MPEG-4]] [[AAC]] audio coding and it utilises [[SBR]] and [[Parametric Stereo]].

More information: http://www.drm.org

Glossary Of Audio Terms

2004-10-15T06:42:24Z

Latexxx: /* P */

==A==

* [[AAC]]
* [[ABR]]
* [[ABX]]/[[ABX|ABX testing]]
* [[AC3]]
* [[Aliasing]]
* [[AltPresets]]
* [[Amplitude]]
* [[APE]] ([[Monkey's Audio]])
* [[APE Tags]]
* [[Artifact]]/[[Artifact|Distortion]]
* [[ATH]] (Absolute Threshold of Hearing)

==B==

* [[Bandpass filter]]
* [[Bandstop filter]]/[[Bandstop filter|Band reject]]
* [[Bandwidth]]
* [[Bark]]
* [[Bit reservoir]]
* [[Bitrate]]
* [[Blind test]]
* [[Block switching]]

==C==

* [[CBR]]/[[Constant bitrate]]/[[CBR|Constant bitrate coding]]
* [[Channel coupling]]
* [[Clipping]]
* [[Codec]]
* [[Container format]]
* [[Critical band]]

==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]]

==F==

* [[FFT]]
* [[Filterbank]]
* [[FIR filter]] (Finite Impulse Response Filters)
* [[FLAC]]
* [[Frequency]]
* [[Frequency domain]]

==H==

* [[Harmonics]]
* [[Highpass]]
* [[Huffman coding]]

==I==

* [[ID3]]
* [[IIR filter]] (Infinite Impulse Response Filters)
* [[Impulse]]
* [[Intensity stereo]]
* [[Inverse mix]]

==J==

* [[Joint stereo]]

==L==

* [[LFE]] (Low Frequency Extension)
* [[LPAC]]
* [[Long block]]
* [[Lossless]]
* [[Lossy]]
* [[Lowpass]]
* [[ATH|LTQ]] (Level of Threshold in Quiet)

==M==

* [[Masking]]
* [[MDCT]]
* [[Metadata]]
* [[Mid-side stereo]]
* [[Monkey's Audio]]
* [[MP3]] (MPEG 1 Audio Layer 3)
* [[MP3Pro]]
* [[MPC]]/[[MPC|MP+]]/[[Musepack]]/[[MPC|Mpeg Plus]]
* [[Mpeg]] (Motion Picture Expert Group)
* [[MPEG-4]]
* [[Multichannel]]

==N==

* [[Neural network]]
* [[Noise shaping]]
* [[Noise like signals]]
* [[Notch filter]]
* [[Nyquist rate]]/[[Nyquist rate|Nyquist frequency]]/[[Nyquist rate|Nyquist sampling theorem]]

==O==

* [[Ogg]]
* [[Ogg Vorbis]]
* [[OptimFROG]]

==P==

* [[Parametric Stereo]] / PS
* [[PCM]]
* [[Pre echo]]/[[Pre echo|Post echo]]
* [[Psychoacoustic]]
* [[Psychoacoustic model]]

==Q==

* [[Quantize]]/[[Quantizer]]/[[Quantization]]
* [[Quantization noise]]

==R==

* [[Range coding]]
* [[Ringing]]

==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]])
* [[Spectrogram]]
* [[Streaming]]
* [[Subband]]
* [[SZIP]]

==T==

* [[Temporal accuracy]]
* [[Temporal smearing]]
* [[Time domain]]
* [[Tonality]]/[[Tonality|Tonal signals]]/[[Tonality|Tonality estimation]]
* [[Transform]]
* [[Transient]]
* [[Transient smearing]]
* [[Transparency]]

==V==

* [[VBR]] (Variable Bitrate/Variable Bitrate Coding)

==W==

* [[WAV]]
* [[Wavelet]]
* [[WMA]]

Oggenc

2004-10-15T06:32:26Z

Latexxx:

'''Oggenc''' is the official [[Ogg Vorbis]] encoder by the Xiph.org Foundation. Is is part of vorbis-tools.

[http://www.vorbis.com Homepage]
[http://www.vorbis.com/download.psp Download]

License:

* GPL

Supported systems:

* Windows
* Linux/BSD

Rio Karma

2004-10-15T06:32:01Z

Latexxx:

FAAC

2004-10-15T06:30:50Z

Latexxx:

== What is FAAC? ==
'''FAAC''' stands for Freeware Advanced Audio Coder. FAAC is a software to compress audio in the [[AAC]] format.

== External References ==
[http://www.audiocoding.com/modules/wiki/?page=FAAC FAAC Wiki at Audiocoding]

[http://www.audiocoding.com/modules/mydownloads/ Source Code Download]

Whamb

2004-10-14T16:47:31Z

Latexxx:

'''Whamb''' is an audio player for Mac OS X. Freeware/donationware. Features multiple playlists, [[MP3]] and [[Ogg Vorbis]] streaming, stream ripping, playlist sharing, skins and more.

[http://www.whamb.com Homepage] -
[http://www.whamb.com/?heading=download&lang=en Download]

Supported formats:

* MP3, Ogg Vorbis
* Audio CD

Supported languages:

* English, French

Requirements:

* Mac OS X 10.2 "Jaguar"

ITunes

2004-10-14T16:46:52Z

Latexxx:

'''ITunes''' is free music player and manger for Windows and MacOS X. Includes CD ripping, encoding and features an extensive library function. The iTunes Music Store is built into iTunes.

[http://www.apple.com/itunes/ Homepage] -
[http://www.apple.com/itunes/download/ Download]

Supported formats:

* [[MP3]], [[AAC]], [[Apple Lossless]], [[WAV]] and [[AIFF]]

Supported languages:

* English, French, German, Spanish, Italian, Dutch, Korean, Norwegian, Danish, Swedish and Chinese (Simplified and Traditional)

Supported systems:

* Windows 2000, XP
* MacOS X 10.1.5 and later
* [http://www.apple.com/itunes/download/ Additional requirements]

Muine

2004-10-14T16:45:47Z

Latexxx:

'''Muine''' is open source music player for Linux/GNOME. Features automatic album-cover fetching, multiple artist and performer tags per song, [[ReplayGain]] support and more.

[http://muine.gooeylinux.org Homepage] -
[http://muine.gooeylinux.org/download.shtml Download]

Supported formats:

* [[MP3]], [[Ogg Vorbis]], [[FLAC]]

Supported languages:

* English, French, German, Spanish, Portugese, Japanese, Korean, Norwegian, Swedish, Polish and more.

Supported platforms:

* Linux/BSD
* [http://muine.gooeylinux.org/download.shtml Additional requirements]

Topic Index

2004-10-14T13:54:03Z

Latexxx: /* Editors */

Currently most of these links lead nowhere due to the fact that we are considering how to best convert the [[http://doc.hydrogenaudio.org/wikis/hydrogenaudio/FrontPage|old material]] and how to reorganize things in a more efficient manner.

* 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.

==General Information==
===Guides===
===FAQ's===
===Glossary===

* [[Glossary_Of_Audio_Terms|Glossary of Audio Terms]]

==Specific Information==

===Audio Software===
----

''Note: We need to figure out a good way to denote the distinction between software available on different platforms.''

====Encoders/Decoders====

=====Lossless=====

* [[FLAC]]

* [[LA_Encoder|LA]]

* [[Monkey's Audio]]

* [[OptimFROG]]

* [[WavPack]]

=====Lossy=====

* [[FAAC]] ([[AAC]])

* [[LAME]] ([[MP3]])

* [[mppenc]] ([[MPC|Musepack]])

* [[oggenc]] ([[Ogg_Vorbis]])

====Rippers====

* [[Exact_Audio_Copy|Exact Audio Copy]] (EAC)

====Players====

''Windows''

* [[foobar2000]]

* [[Winamp]]

* [[iTunes]]

* [[wxMusik]]

''Linux/BSD''

* [[Rhythmbox]]

* [[Muine]]

* [[wxMusik]]

''Mac OS X''

* [[Whamb]]

''Other''

* [[CL-Amp]] (BeOS)

====Editors====

* [[Adobe_Audition|Adobe Audition]] (Previously known as CoolEdit)
* [[Audacity]]

====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====

====HiFi====

====Digital Audio Players====

===Audio Theory===
----

====Analog Audio====

====Digital Audio====

====Compression Technology====

====Testing Methodology====

===Audio Development===
----

====Getting Started====

====Tools====

====Resources====

===Audio Resources===
----

====Websites====

* http://www.audiocoding.com
* http://www.head-fi.org

====Articles====

====Listening Tests====

===Other Topics===
----

====Video====

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

====[[Container Formats]]====
* [[Matroska]]
* [[Ogg]]
* [[AVI]]
* [[MPEG-4 Systems]]

====[[Metadata]]====
* [[ID3]]
* [[APE Tags]]

Glossary Of Audio Terms

2004-10-14T07:44:06Z

Latexxx: /* A */

==A==

* [[AAC]]
* [[ABR]]
* [[ABX]]/[[ABX|ABX testing]]
* [[AC3]]
* [[Aliasing]]
* [[AltPresets]]
* [[Frequency|Amplitude]] and [[Frequency]]
* [[APE]] (extension for [[Monkey's Audio]])
* [[APE Tags]]
* [[Artifact]]/[[Artifact|Distortion]]
* [[ATH]] (absolute threshold of hearing)/[[ATH|LTQ]] (level of threshold in quiet)

==B==

* [[Bandpass filter]]
* [[Bandstop filter]]/[[Bandstop filter|Band reject]]
* [[Bandwidth]]
* [[Bark]]
* [[Bit reservoir]]
* [[Bitrate]]
* [[Blind test]]
* [[Block switching]]

==C==

* [[CBR]]/[[Constant bitrate]]/[[CBR|Constant bitrate coding]]
* [[Channel coupling]]
* [[Clipping]]
* [[Codec]]
* [[Container format]]
* [[Critical band]]

==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]]

==F==

* [[FFT]]
* [[Filterbank]]
* [[FIR filter]] (Finite Impulse Response Filters)
* [[FLAC]]
* [[Frequency]] and [[Amplitude]]
* [[Frequency domain]]

==H==

* [[Harmonics]]
* [[Highpass]] Filter
* [[Huffman coding]]

==I==

* [[ID3]]
* [[IIR filter]] (Infinite Impulse Response Filters)
* [[Impulse]]
* [[Intensity stereo]]
* [[Inverse mix]]

==J==

* [[Joint stereo]]

==L==

* [[LFE]] - Low Frequency Extension
* [[LPAC]]
* [[Long block]]
* [[Lossless]]
* [[Lossy]]
* [[Lowpass]] Filter
* [[ATH|LTQ]] (level of threshold in quiet)

==M==

* [[Masking]]
* [[MDCT]]
* [[Metadata]]
* [[Mid-side stereo]]
* [[Monkey's Audio]]
* [[MP3]] (MPEG 1 audio layer 3)
* [[MP3Pro]]
* [[MPC]]/[[MPC|MP+]]/[[Musepack]]/[[MPC|Mpeg Plus]]
* [[Mpeg]]/Motion Picture Expert Group
* [[Multichannel]]

==N==

* [[Neural network]]
* [[Noise shaping]]
* [[Noise like signals]]
* [[Notch filter]]
* [[Nyquist rate]]/[[Nyquist rate|Nyquist frequency]]/[[Nyquist rate|Nyquist sampling theorem]]

==O==

* [[Ogg]]
* [[Ogg Vorbis]]
* [[OptimFROG]]

==P==

* [[PCM]]
* [[Pre echo]]/[[Pre echo|Post echo]]
* [[Psychoacoustic]]
* [[Psychoacoustic model]]

==Q==

* [[Quantize]]/[[Quantizer]]/[[Quantization]]
* [[Quantization noise]]

==R==

* [[Range coding]]
* [[Ringing]] (traditional sense)

==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]])
* [[Spectrogram]]
* [[Streaming]]
* [[Subband]]
* [[SZIP]]

==T==

* [[Temporal accuracy]]
* [[Temporal smearing]]
* [[Time domain]]
* [[Tonality]]/[[Tonality|Tonal signals]]/[[Tonality|Tonality estimation]]
* [[Transform]]
* [[Transient]]
* [[Transient smearing]]
* [[Transparency]]

==V==

* [[VBR]] (variable bitrate/variable bitrate coding)

==W==

* [[WAV]]
* [[Wavelet]]
* [[WMA]]

Glossary Of Audio Terms

2004-10-14T07:43:52Z

Latexxx: /* I */

==A==

* [[AAC]]
* [[ABR]]
* [[ABX]]/[[ABX|ABX testing]]
* [[AC3]]
* [[Aliasing]]
* [[AltPresets]]
* [[Frequency|Amplitude]] and [[Frequency]]
* [[APE]] (extension for [[Monkey's Audio]])
* [[Artifact]]/[[Artifact|Distortion]]
* [[ATH]] (absolute threshold of hearing)/[[ATH|LTQ]] (level of threshold in quiet)

==B==

* [[Bandpass filter]]
* [[Bandstop filter]]/[[Bandstop filter|Band reject]]
* [[Bandwidth]]
* [[Bark]]
* [[Bit reservoir]]
* [[Bitrate]]
* [[Blind test]]
* [[Block switching]]

==C==

* [[CBR]]/[[Constant bitrate]]/[[CBR|Constant bitrate coding]]
* [[Channel coupling]]
* [[Clipping]]
* [[Codec]]
* [[Container format]]
* [[Critical band]]

==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]]

==F==

* [[FFT]]
* [[Filterbank]]
* [[FIR filter]] (Finite Impulse Response Filters)
* [[FLAC]]
* [[Frequency]] and [[Amplitude]]
* [[Frequency domain]]

==H==

* [[Harmonics]]
* [[Highpass]] Filter
* [[Huffman coding]]

==I==

* [[ID3]]
* [[IIR filter]] (Infinite Impulse Response Filters)
* [[Impulse]]
* [[Intensity stereo]]
* [[Inverse mix]]

==J==

* [[Joint stereo]]

==L==

* [[LFE]] - Low Frequency Extension
* [[LPAC]]
* [[Long block]]
* [[Lossless]]
* [[Lossy]]
* [[Lowpass]] Filter
* [[ATH|LTQ]] (level of threshold in quiet)

==M==

* [[Masking]]
* [[MDCT]]
* [[Metadata]]
* [[Mid-side stereo]]
* [[Monkey's Audio]]
* [[MP3]] (MPEG 1 audio layer 3)
* [[MP3Pro]]
* [[MPC]]/[[MPC|MP+]]/[[Musepack]]/[[MPC|Mpeg Plus]]
* [[Mpeg]]/Motion Picture Expert Group
* [[Multichannel]]

==N==

* [[Neural network]]
* [[Noise shaping]]
* [[Noise like signals]]
* [[Notch filter]]
* [[Nyquist rate]]/[[Nyquist rate|Nyquist frequency]]/[[Nyquist rate|Nyquist sampling theorem]]

==O==

* [[Ogg]]
* [[Ogg Vorbis]]
* [[OptimFROG]]

==P==

* [[PCM]]
* [[Pre echo]]/[[Pre echo|Post echo]]
* [[Psychoacoustic]]
* [[Psychoacoustic model]]

==Q==

* [[Quantize]]/[[Quantizer]]/[[Quantization]]
* [[Quantization noise]]

==R==

* [[Range coding]]
* [[Ringing]] (traditional sense)

==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]])
* [[Spectrogram]]
* [[Streaming]]
* [[Subband]]
* [[SZIP]]

==T==

* [[Temporal accuracy]]
* [[Temporal smearing]]
* [[Time domain]]
* [[Tonality]]/[[Tonality|Tonal signals]]/[[Tonality|Tonality estimation]]
* [[Transform]]
* [[Transient]]
* [[Transient smearing]]
* [[Transparency]]

==V==

* [[VBR]] (variable bitrate/variable bitrate coding)

==W==

* [[WAV]]
* [[Wavelet]]
* [[WMA]]

Topic Index

2004-10-14T07:43:15Z

Latexxx: /* Metadata */

MPEG-4

2004-10-14T07:41:17Z

Latexxx:

'''MPEG-4''' is ISO's stadard for encoding audio, video and other content.

====See====
* [[MPEG-4 Visual]]
* [[AAC]]
* [[MPEG-4 Systems]]
* http://forum.doom9.org/showthread.php?s=&threadid=73022

MPEG-4 Visual

2004-10-14T07:39:06Z

Latexxx:

'''MPEG-4 Visual''' is the most known part of ISO's [[MPEG-4]] standards. MPEG-4 Visual defines video compression methods which are divided into different profiles based on their processing power demands.

====Profiles====
* [[MPEG-4 SP|Simple Profile]]
* [[MPEG-4 ASP|Advanced Simple Profile]]
* [[MPEG-4 AVC|Advanced Video Coding]] (h.264)

====Famous Implementations====
* [[XviD]] ([[MPEG-4 ASP]])
* [[DivX]] (partial [[MPEG-4 ASP]])
* [[Nero Digital]] ([[MPEG-4 ASP]], in future also [[MPEG-4 AVC]])
* [[x264]] ([[MPEG-4 AVC]])

MPEG-4 Visual

2004-10-14T07:38:37Z

Latexxx:

'''MPEG-4 Visual''' is the most known part of ISO's MPEG-4 standards. MPEG-4 Visual defines video compression methods which are divided into different profiles based on their processing power demands.

====Profiles====
* [[MPEG-4 SP|Simple Profile]]
* [[MPEG-4 ASP|Advanced Simple Profile]]
* [[MPEG-4 AVC|Advanced Video Coding]] (h.264)

====Famous Implementations====
* [[XviD]] ([[MPEG-4 ASP]])
* [[DivX]] (partial [[MPEG-4 ASP]])
* [[Nero Digital]] ([[MPEG-4 ASP]], in future also [[MPEG-4 AVC]])
* [[x264]] ([[MPEG-4 AVC]])

Glossary Of Audio Terms

2004-10-14T07:31:05Z

Latexxx: /* D */

==A==

* [[AAC]]
* [[ABR]]
* [[ABX]]/[[ABX|ABX testing]]
* [[AC3]]
* [[Aliasing]]
* [[AltPresets]]
* [[Frequency|Amplitude]] and [[Frequency]]
* [[APE]] (extension for [[Monkey's Audio]])
* [[Artifact]]/[[Artifact|Distortion]]
* [[ATH]] (absolute threshold of hearing)/[[ATH|LTQ]] (level of threshold in quiet)

==B==

* [[Bandpass filter]]
* [[Bandstop filter]]/[[Bandstop filter|Band reject]]
* [[Bandwidth]]
* [[Bark]]
* [[Bit reservoir]]
* [[Bitrate]]
* [[Blind test]]
* [[Block switching]]

==C==

* [[CBR]]/[[Constant bitrate]]/[[CBR|Constant bitrate coding]]
* [[Channel coupling]]
* [[Clipping]]
* [[Codec]]
* [[Container format]]
* [[Critical band]]

==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]]

==F==

* [[FFT]]
* [[Filterbank]]
* [[FIR filter]] (Finite Impulse Response Filters)
* [[FLAC]]
* [[Frequency]] and [[Amplitude]]
* [[Frequency domain]]

==H==

* [[Harmonics]]
* [[Highpass]] Filter
* [[Huffman coding]]

==I==

* [[IIR filter]] (Infinite Impulse Response Filters)
* [[Impulse]]
* [[Intensity stereo]]
* [[Inverse mix]]

==J==

* [[Joint stereo]]

==L==

* [[LFE]] - Low Frequency Extension
* [[LPAC]]
* [[Long block]]
* [[Lossless]]
* [[Lossy]]
* [[Lowpass]] Filter
* [[ATH|LTQ]] (level of threshold in quiet)

==M==

* [[Masking]]
* [[MDCT]]
* [[Metadata]]
* [[Mid-side stereo]]
* [[Monkey's Audio]]
* [[MP3]] (MPEG 1 audio layer 3)
* [[MP3Pro]]
* [[MPC]]/[[MPC|MP+]]/[[Musepack]]/[[MPC|Mpeg Plus]]
* [[Mpeg]]/Motion Picture Expert Group
* [[Multichannel]]

==N==

* [[Neural network]]
* [[Noise shaping]]
* [[Noise like signals]]
* [[Notch filter]]
* [[Nyquist rate]]/[[Nyquist rate|Nyquist frequency]]/[[Nyquist rate|Nyquist sampling theorem]]

==O==

* [[Ogg]]
* [[Ogg Vorbis]]
* [[OptimFROG]]

==P==

* [[PCM]]
* [[Pre echo]]/[[Pre echo|Post echo]]
* [[Psychoacoustic]]
* [[Psychoacoustic model]]

==Q==

* [[Quantize]]/[[Quantizer]]/[[Quantization]]
* [[Quantization noise]]

==R==

* [[Range coding]]
* [[Ringing]] (traditional sense)

==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]])
* [[Spectrogram]]
* [[Streaming]]
* [[Subband]]
* [[SZIP]]

==T==

* [[Temporal accuracy]]
* [[Temporal smearing]]
* [[Time domain]]
* [[Tonality]]/[[Tonality|Tonal signals]]/[[Tonality|Tonality estimation]]
* [[Transform]]
* [[Transient]]
* [[Transient smearing]]
* [[Transparency]]

==V==

* [[VBR]] (variable bitrate/variable bitrate coding)

==W==

* [[WAV]]
* [[Wavelet]]
* [[WMA]]

Theora

2004-10-14T07:20:25Z

Latexxx:

'''Theora''' is Xiph.org Foundation's open source and patent free [[video codec]] which is based on On2's [[VP3]] [[video codec]].

Topic Index

2004-10-14T07:17:20Z

Latexxx: /* Video */

Glossary Of Audio Terms

2004-10-14T07:14:57Z

Latexxx: /* M */

==A==

* [[AAC]]
* [[ABR]]
* [[ABX]]/[[ABX|ABX testing]]
* [[AC3]]
* [[Aliasing]]
* [[AltPresets]]
* [[Frequency|Amplitude]] and [[Frequency]]
* [[APE]] (extension for [[Monkey's Audio]])
* [[Artifact]]/[[Artifact|Distortion]]
* [[ATH]] (absolute threshold of hearing)/[[ATH|LTQ]] (level of threshold in quiet)

==B==

* [[Bandpass filter]]
* [[Bandstop filter]]/[[Bandstop filter|Band reject]]
* [[Bandwidth]]
* [[Bark]]
* [[Bit reservoir]]
* [[Bitrate]]
* [[Blind test]]
* [[Block switching]]

==C==

* [[CBR]]/[[Constant bitrate]]/[[CBR|Constant bitrate coding]]
* [[Channel coupling]]
* [[Clipping]]
* [[Codec]]
* [[Container format]]
* [[Critical band]]

==D==

* [[dB]]/[[dB|Decibel]]
* [[DC coefficient]]
* [[DCT]]
* [[DCT coefficient]]
* [[DRM]]
* [[DSP]]
* [[DTS]]

==F==

* [[FFT]]
* [[Filterbank]]
* [[FIR filter]] (Finite Impulse Response Filters)
* [[FLAC]]
* [[Frequency]] and [[Amplitude]]
* [[Frequency domain]]

==H==

* [[Harmonics]]
* [[Highpass]] Filter
* [[Huffman coding]]

==I==

* [[IIR filter]] (Infinite Impulse Response Filters)
* [[Impulse]]
* [[Intensity stereo]]
* [[Inverse mix]]

==J==

* [[Joint stereo]]

==L==

* [[LFE]] - Low Frequency Extension
* [[LPAC]]
* [[Long block]]
* [[Lossless]]
* [[Lossy]]
* [[Lowpass]] Filter
* [[ATH|LTQ]] (level of threshold in quiet)

==M==

* [[Masking]]
* [[MDCT]]
* [[Metadata]]
* [[Mid-side stereo]]
* [[Monkey's Audio]]
* [[MP3]] (MPEG 1 audio layer 3)
* [[MP3Pro]]
* [[MPC]]/[[MPC|MP+]]/[[Musepack]]/[[MPC|Mpeg Plus]]
* [[Mpeg]]/Motion Picture Expert Group
* [[Multichannel]]

==N==

* [[Neural network]]
* [[Noise shaping]]
* [[Noise like signals]]
* [[Notch filter]]
* [[Nyquist rate]]/[[Nyquist rate|Nyquist frequency]]/[[Nyquist rate|Nyquist sampling theorem]]

==O==

* [[Ogg]]
* [[Ogg Vorbis]]
* [[OptimFROG]]

==P==

* [[PCM]]
* [[Pre echo]]/[[Pre echo|Post echo]]
* [[Psychoacoustic]]
* [[Psychoacoustic model]]

==Q==

* [[Quantize]]/[[Quantizer]]/[[Quantization]]
* [[Quantization noise]]

==R==

* [[Range coding]]
* [[Ringing]] (traditional sense)

==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]])
* [[Spectrogram]]
* [[Streaming]]
* [[Subband]]
* [[SZIP]]

==T==

* [[Temporal accuracy]]
* [[Temporal smearing]]
* [[Time domain]]
* [[Tonality]]/[[Tonality|Tonal signals]]/[[Tonality|Tonality estimation]]
* [[Transform]]
* [[Transient]]
* [[Transient smearing]]
* [[Transparency]]

==V==

* [[VBR]] (variable bitrate/variable bitrate coding)

==W==

* [[WAV]]
* [[Wavelet]]
* [[WMA]]

Topic Index

2004-10-14T07:14:10Z

Latexxx: /* Other Topics */

Topic Index

2004-10-14T07:08:42Z

Latexxx: /* Video */

Topic Index

2004-10-14T07:07:09Z

Latexxx: /* Other Topics */