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Audacity: Free Sound Editor and Recording Software

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Plug-Ins and Libraries

You can download and install plug-ins or libraries to add extra functionality to Audacity. Plug-ins can give you extra effects, or more audio generation and analysis capability. Adding libraries can allow you to import or export additional audio formats.

Plug-In Installation

To install new plug-ins, place them in the Plug-Ins folder inside the Audacity installation folder. On Windows computers, this is usually under "Program Files". On Mac OS X, it is usually under "Applications". Restart Audacity, then the Plug-ins will appear underneath the divider in the "Effect", "Generate" or "Analyze" menus.

LADSPA Plug-Ins

Audacity has built-in support for LADSPA plug-ins. These plug-ins are mostly built for Linux, but some are available for other operating systems too. Audacity includes some sample LADSPA effects. Windows users can install an additional set of over 90 LADSPA plug-ins. There is a similar set of LADSPA plug-ins for Mac. More information and many LADSPA plug-ins for Linux can be found on the LADSPA web site.

Nyquist Plug-Ins

Audacity has built-in support for Nyquist effects on all operating systems. You can download additional Nyquist plug-ins, or create your own using the Nyquist programming language. Nyquist code can be tested using "Nyquist Prompt" under the Effect menu, or code for Nyquist plug-ins that generate audio can be quickly tested with Nyquist Generate Prompt.

VST Plug-Ins

Audacity can load VST effects on Windows and Mac using the optional VST Enabler. VST effects can be found on many plug-in sites such as:

The VST Plug-ins page on our Wiki lists a large number of VST plug-ins that have been reported to work well in Audacity.

Libraries

At present, the only library you can add to the Stable 1.2 version of Audacity is the LAME MP3 encoding library. This allows Audacity to export audio in the popular MP3 format. To install the LAME library, please read our LAME FAQ.

In addition to supporting LAME, the Beta 1.3 version of Audacity has experimental support for the FFmpeg import/export library. This allows Audacity to import and export many additional audio formats such as AC3, AMR(NB), M4A and WMA, and to import audio from video files. To install the FFmpeg library, please read our FFmpeg FAQ. The next 2.0 Stable version of Audacity is expected to support the FFmpeg library.