Audio

Ambisuite
- programs for manipulating ambisonic (sound) files.
Audio Space
- calculates audio storage space
Find Duplicate Music Files
- detects music files that contain the same music, even if the files are differently named, and are in different formats.
Free V-AMP
- Controller for the Behringer V-AMP2 guitar amplifier
HASAS
- HydroAcoustic Signal Analysis System
Hound Dog
- is a KDE instrument tuner.
MilkyTracker
- 2nd generation music tracker
Ogle
- DVD player
Playmidi
- MIDI player for GUS, FM, and external MIDI devices
Simple Multitrack
- is Gnu/Linux or Mac OS X software for recording and mixing multitrack audio.
Sound Monitor
- Shows esound output
Sound Mural
- is a command line program that converts images to sound.
Umix
- Adjusts soundcard volume and other features
Wave Utilities
- deal with WAVE files
Xhippo
- Playlist manager
aRts
- Framework for developing modular multimedia applications
amaroK
- Multimedia player for KDE
eSpeak
- Multi-lingual software speech synthesizer
irsleeptimer
- implements the Sleep Timer function for Lirc.
jMax
- Programming environment for real-time audio
krecspk
- hot-key commandline audio recording
libmodplug
- Plays module files (.mod, .s3m, .it, .xm, and more).
octal
- Free digital sound workstation for Unix-like systems
speex
- Speech compression format
uShare
- Is a UPnP A/V Media Server.