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.

Audacity also has a built-in amplitude envelope editor, a customizable spectrogram mode and a frequency analysis window for audio analysis applications.

What's New:

Audacity 2.1.0 replaces all previous versions. It fixes crashes or hangs that were reported in Audacity 2.0.4 on some machines, and contains many other bug fixes and stability improvements.

  • (OS X) Crashes when importing audio files are fixed.
  • (OS X) Files can now be opened using Finder "Open with", and by double-click or dragging to the Audacity icon.
  • (OS X) Audio Unit plug-ins are not loaded until used. This makes Audacity start faster and avoids startup crashes due to incompatible plug-ins.
  • (Windows) On a very few machines, the Windows WDM-KS low latency host caused Audacity 2.0.4 to hang or the computer to crash. WDM-KS has been removed from Audacity 2.0.5 while we work on safely enabling this host. WDM-KS will still be available for testing in the Windows alpha development builds.
  • (Windows) Fixed a bug where Audacity would not record until the current input was reselected.
  • (Linux) You can now navigate through an effect or other dialog using keyboard TAB.

Requirements:

  • LAME MP3 Encoder Library.