Audacity 2.0.3

Features This is a list of features in Audacity, the free audio editor. For more information on how to use these features, go to the help pages. Recording Audacity can record live audio through a microphone or mixer, or digitize recordings from cassette tapes, vinyl records, or 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 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.

• 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.

• 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

• 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.

• Add new effects with LADSPA plug-ins.


• Audacity includes some sample plug-ins by Steve Harris.


• Load VST plug-ins for Windows and Mac, with the optional VST Enabler.


• Write new effects with the built-in Nyquist programming language.

• Spectrogram mode for visualizing frequencies.


• “Plot Spectrum” command for detailed frequency analysis.