Audacity

2005-08-24T23:26:55Z

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=Introduction=

'''Audacity''' is a free, easy-to-use audio editor and recorder for Windows, Mac OS X, GNU/Linux, and other operating systems. You can use Audacity for:

==Recording==

Audacity can record live audio through a microphone or mixer, digitize recordings from cassette tapes, vinyl records, and minidiscs. With some sound cards, it can also capture streaming audio.

* Record from microphone, line input, or other sources.
* Dub over existing tracks to create multi-track recordings.
* Record up to 16 channels at once (requires multi-channel hardware).
* Level meters can monitor volume levels before, during, and after recording.

==Import and Export==

Import sound files, edit them, and combine them with other files or new recordings. Export your recordings in several common file formats.

* Import and export WAV, AIFF, AU, and Ogg Vorbis files.
* Import MPEG audio (including MP2 and MP3 files) with libmad.
* Export MP3s with the optional LAME encoder library.
* Create WAV or AIFF files suitable for burning to CD.
* Import and export all file formats supported by libsndfile.
* Open raw (headerless) audio files using the “Import Raw” command.
* Note: Audacity does not currently support WMA, AAC, or most other proprietary or restricted file formats.

==Editing==

* Easy editing with Cut, Copy, Paste, and Delete.
* Use unlimited Undo (and Redo) to go back any number of steps.
* Very fast editing of large files.
* Edit and mix an unlimited number of tracks.
* Use the Drawing tool to alter individual sample points.
* Fade the volume up or down smoothly with the Envelope tool.

==DSP Effects==

* Change the pitch without altering the tempo, or vice-versa.
* Remove static, hiss, hum, or other constant background noises.
* Alter frequencies with Equalization, FFT Filter, and Bass Boost effects.
* Adjust volumes with Compressor, Amplify, and Normalize effects.
* Other built-in effects include:
** Echo
** Phaser
** Wahwah
** Reverse

==Sound Quality==

* Record and edit 16-bit, 24-bit, and 32-bit (floating point) samples.
* Record at up to 96 KHz.
* Sample rates and formats are converted using high-quality resampling and dithering.
* Mix tracks with different sample rates or formats, and Audacity will convert them automatically in realtime.

==Plug-ins==

* Add new effects with [http://en.wikipedia.org/wiki/LADSPA LADSPA plugins].
* Audacity includes some sample plugins by Steve Harris.
* Load VST plugins for Windows and Mac, with the optional [http://en.wikipedia.org/wiki/Virtual_Studio_Technology VST] Enabler.
* Write new effects with the built-in Nyquist programming language.

==External Links==

* [http://audacity.sourceforge.net/ Audacity Home Page]
* Audacity discussions: check out this [http://www.nabble.com/Audacity-f463.html Audacity User Forum] hosted by [http://www.nabble.com Nabble] archiving [http://audacity.sourceforge.net/contact/lists Audacity mailing lists] into a searchable forum.

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Audacity