A

Amarok

Cross-platform free and open source music player

AudioOpen Source

Ampache

Web based audio/video streaming application and file manager

G1

Ardour

Powerful digital audio editor and sequencer

Audio

aTunes

Free and open source audio player with MPlayer as its playback engine

AudioOpen Source

Audacious

Free and open source audio player with a focus on low resource usage

AudioOpen Source

Audacity

Free open source digital audio editor

AudioOpen Source

audiolib.js

Audio tools library for javascript

C

ChucK

strongly timed audio programming language for real-time synthesis

Audio

Clementine

Cross-platform free and open source music player and library organizer

AudioLibraryOpen Source

Csound

Computer programming language for sound written in C

AudioC

E

Ecasound

Hard-disk recording and audio processing tool written in C++

AudioProcessing

Exaile

Exaile is a music manager and player for GTK+ written in Python

AudioPython

F

G1

FFmpeg

Cross-platform solution to record, convert and stream audio and video

AudioVideo

FMOD

Audio content creation tool for games

Audio

J

JACK

Professional sound server daemon

Audio

K

Kid3

Open-source cross-platform audio tag editor for many audio file formats

AudioOpen Source

L

libsndfile

C library for reading and writing audio files

AudioCLibrary

libvorbis

General-purpose compressed audio format

Audio

M

MARF

The modular audio recognition framework

Maximilian

C++ Audio and Music DSP Library

N

Nightingale

Customizable cross-platform music player.

Audio

Nyquist

Programming language for sound synthesis and analysis based on lisp

Audio

O

P

Pure Data

Visual programming language developed for creating interactive computer music

Audio

Q

Quod Libet

Cross-platform free and open-source music player, tag editor and library organizer written in Python

AudioLibraryOpen SourcePython

S

SoX

Free cross-platform digital audio editor written in C

AudioC

SuperCollider

Programming language for real time audio synthesis

Audio

T

Tomahawk

Multi source music player

Audio

Traverso DAW

Cross-platform multitrack audio recording and audio editing

Audio