aac
adplug LGPLv2+
alarm GPLv2+
albumart BSD
alsa BSD
amidi-plug GPLv2+
aosd GPLv2+
asx GPLv2+
asx3 BSD
audpl BSD
blur_scope GPLv2+
bs2b GPLv2+
cairo-spectrum MIT
cdaudio-ng GPLv3
cd-menu-items BSD
compressor BSD
console LGPLv2+
crossfade BSD
crystalizer MIT
cue BSD
delete-files BSD
echo_plugin
ffaudio BSD
filewriter GPLv2+
flacng GPLv3+
gio BSD
gl-spectrum GPLv2+
gnomeshortcuts GPLv2+
gtkui BSD
hotkey GPLv2+
jack LGPLv2+
ladspa BSD
lirc GPLv2+
lyricwiki MIT
m3u GPLv2+
metronom GPLv2+
mixer BSD
mms BSD
modplug Public Domain
mpg123 MIT
mpris2 BSD
neon GPLv2+
notify GPLv3+
oss4
pls GPLv3
psf BSD
pulse_audio GPLv2+
resample BSD
scrobbler
scrobbler2 GPLv3
sdlout BSD
search-tool BSD
sid GPLv2+
skins GPLv3
sndfile GPLv2+
sndio
song_change
sox-resampler BSD
speed-pitch BSD
statusicon GPLv2+
stereo_plugin
tonegen GPLv2+
voice_removal MIT
vorbis LGPLv2+
vtx GPLv2+
wavpack
xsf BSD and GPLv2+
xspf GPLv2+