Package audacity

Multitrack audio editor

http://audacity.sourceforge.net

Audacity 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 PulseAudio, OSS and ALSA under Linux.

General Commands (Section 1)
audacity
Audacity is a graphical audio editor. This man page does not describe all of the features of Audacity or how to use it; for this, see the html documentation...