Audio File Library
An API for accessing a variety of audio file formats.
Adjusts an audio mixer. X and ncurses interfaces.
GTK+/GNOME based front-end to BSE framework to simulate audio synthesis and tracking composition.
Baudline Signal Analyzer
Realtime signal analysis and spectrum analyzer tool.
Suite of tools for handling CD+G karaoke disks and files.
CoverViewer XMMS Plugin
Displays covers or images related to songs. Internet cover retrieval facility. Handles tagged files, CDs, and streams.
Free and extensible Linux/Unix audio editor. GNU licence.
Creates beautiful music notation from text input. Outputs PDF, Postscript, SVG or MIDI files. GNU license.
Gnome Wave Cleaner
An audio cleanup tool for GNOME. Handles WAV, MP3, and Ogg.
Assists in moving gramophone records onto CDs. Filters out hiss and pops.
Open source DJ mixer.
MIDI/Audio sequencer with recording and editing capabilities.
CDG/MP3+G karaoke player. Can search inside Zip files.
Audio player based on GTK+ written in Python, lets users make playlists with regular expressions and provides advanced tag editing features.
Rakarrack Guitar Effects
A guitar effects processor intended to be simple and easy to use. Features effects like distortion, echo, chorus and wah-wah, and integrates a MIDI converter. Detailed documentation is offered.
MIDI sequencer and notation editor for Unix-like systems.
Sound Processing Kit
An object-oriented class library for audio signal processing.
MOD tracker for X, similar to FastTracker. Includes a sample recorder and editor.
MIDI player, converter to wav. Uses Gravis compatible patches and can play these through soundcards lacking their own patches.
XMMS-SID SIDplay Plugin
Plug-in for playing Commodore 64 music (SID tunes) with XMMS. Requires libSIDPlay library (link given).
Synthesizer with two engines, realtime polyphonic, Midi support, microtonal capability, effects.