8svx - is a sox supported format for the amiga OS. LINK
aac - is the Apple lossy audio format. You will need faac & faad installed to use this format. LINK
ac3 - is the dolby digital audio format. This is mainly used for dvd audio. It is supported by ffmpeg. LINK
aiff - is the Apple audio standard supported by sox. LINK
al - is the European A-Law format supported by sox. LINK
ape - is a Lossless format called Monkeys Audio. You will need the mac executable installed to use this format. LINK
au - is the Sun OS audio standard supported by sox. LINK
auto - is supported by sox (not sure what it is exactly)
avr - is a popular sound format found on the Atari ST computers supported by sox.
cdr - is a format used for cd audio. it is supported by sox.
cvs - is supported by sox (not sure what it is exactly)
dat - is a format used for cd audio. it is supported by sox.
flac - is a Lossless format called Free Lossless Audio Codec. You need flac installed to use this format. LINK
gsm - is lossy speech compression supported by sox. LINK
hcom - is Apple HCOM audio and is supported by sox
la - is a lossless audio codec. You'll need the la executable installed to use this format. LINK
lu - not sure what this is but it's supported by sox.
m4a - is an aac file in a mp4 container. It is lossy and requires the faac and faad executables installed to be used. LINK
maud - is M audio supported by sox.
mp2 - is a lossy format supported by ffmpeg. It can be used for dvd audio. LINK
mp3 - is the lossy standard supported by lame. LINK
mpc - is a lossy format called musepack based on mp2. You will need mppenc & mppdec installed to use this format. LINK
mpp - is the older version of mpc (musepack). You will need mppenc & mppdec installed to use this format. LINK
ofr - is a lossless format called Optimfrog. You will need the ofr executable installed to use this format. LINK
ogg - is the open source lossy codec. It is supported by ffmpeg and sox although in a lesser quality. To get the best ogg quality you will need oggenc installed. LINK
pac - is a lossless format called Lossless Predictive Audio Compression. You'll need the lpac executable installed to use this format. LINK
prc - not sure what this is but it's supported by sox.
ra - is the lossy real audio format supported by ffmpeg. LINK
raw - is an uncompressed format with no header supported by sox.
sb - Unix audio supported by sox.
sf - not sure what this is but it's supported by sox.
shn - is a lossless format called shorten. You will need shorten installed to use this format. LINK
sl - not sure what this is but it's supported by sox.
smp - Sample Vision Audio supported by sox.
sndt - Sound Tools audio supported by sox. LINK
sph - not sure what this is but it's supported by sox.
sw - Unix audio supported by sox.
tta - is a lossless format called True Type audio. You'll need ttaenc installed to use this format. LINK
txw - not sure what this is but it's supported by sox.
ub - Unix audio supported by sox.
ul - Unix audio supported by sox.
uw - Unix audio supported by sox.
vms - not sure what this is but it's supported by sox.
voc - Creative Labs audio supported by sox. LINK
vorbis - alternate extension for ogg. supported by sox.
vox - is a format intended for speach supported by sox.
wav - Windows standard audio supported by sox.
wma - Windows media audio, a lossy compressed format supported by ffmpeg.
wv - is a lossless format called Wavpack. You'll need the wavpack & wvunpack executables installed to use this format. LINK
wve - not sure what this is but it's supported by sox.