Audacity for Debian is a cross-platform multitrack audio editor. It allows you to record sounds directly or to import files in various formats. It features a few simple effects, all of the editing features you should need, and unlimited undo. The GUI was built with wxWidgets and the audio I/O supports OSS and ALSA under Linux.
Full Specifications
What's new in version 2.0.3-1
Version 2.0.3-1 has fixed crash using Undo whilst time-shifting a track, Loop Play of a speeded-up track inserted silence, and JAWS and Window-eyes misread the "Duration" control in Silence Generator.