Audacity allows you to record sounds, play sounds, import and export WAV, AIFF, and MP3 files, and more.

Built-in effects include Bass Boost, Wahwah, and Noise Removal, and it also supports VST plug-in effects.

Use it to edit your sounds using Cut, Copy and Paste (with unlimited Undo), mix tracks together, or apply effects to your recordings. It also has a built-in amplitude envelope editor, a customizable spectrogram mode and a frequency analysis window for audio analysis applications.

Requirements:

· LAME MP3 Encoder Library
· at least 64 MB RAM and a 300 MHz processor

What's New in This Release: [ read full changelog ]

· Crashes on Windows when clicking in the track or in effects dialogs.
· Crashes on OS X when closing or quitting.
· Warning (on by default) now provided when importing uncompressed audio files and when read-directly uncompressed files are missing.
· Full support added for later versions of the optional FFmpeg library up to current FFmpeg HEAD. More compatible U-Law/A-Law exports.
· VST effects processing restored to full speed. Hang fixed when launching on OS X 10.5 PPC with VST effects present.
· (OS X) Files imported from iTunes could create invalid characters in the .aup project file. See here for help re-opening older projects that have this error.
· (Linux) Crashes or stalled recordings using the pulse device. Crashes using Play-at-Speed if Audacity was configured with libsamplerate.