1. A fast, cross-platform audio editor Audacity is an innovative graphical audio editor. Its main goals are speed and being cross-platform (it uses the cross-platform toolkit wxWindows, and is fully supported on Linux, Windows, Mac OS 9 and X, and FreeBSD). It is very fast. Due to its file format and internal data representation, undo and redo are constant-time operations. It also supports an unlimited number of tracks, and can import and export a number of different formats including WAV, AIFF, MP3 and Ogg Vorbis. From Debian 3.0r0 APT