third_party_libsnd/docs/formats.md

layout: page title: libsndfile: Supported formats

libsndfile : Supported formats

The following table lists the file formats and encodings that libsndfile can read and write. The file formats are arranged across the top and encodings along the left edge.

{:.formats-table}

	Microsoft WAV	SGI / Apple AIFF / AIFC	Sun / DEC / NeXT AU / SND	Headerless RAW	Paris Audio File PAF	Commodore Amiga IFF / SVX	Sphere Nist WAV	IRCAM SF	Creative VOC	Soundforge W64	GNU Octave 2.0 MAT4	GNU Octave 2.1 MAT5	Portable Voice Format PVF	Fasttracker 2 XI	HMM Tool Kit HTK	Apple CAF	Sound Designer II SD2	Free Lossless Audio Codec FLAC
Unsigned 8 bit PCM	R/W	R/W		R/W					R/W	R/W		R/W
Signed 8 bit PCM		R/W	R/W	R/W	R/W	R/W	R/W						R/W			R/W	R/W	R/W
Signed 16 bit PCM	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W		R/W	R/W	R/W	R/W
Signed 24 bit PCM	R/W	R/W	R/W	R/W	R/W		R/W			R/W						R/W	R/W	R/W
Signed 32 bit PCM	R/W	R/W	R/W	R/W			R/W	R/W		R/W	R/W	R/W	R/W			R/W
32 bit float	R/W	R/W	R/W	R/W				R/W		R/W	R/W	R/W				R/W
64 bit double	R/W	R/W	R/W	R/W						R/W	R/W	R/W				R/W
u-law encoding	R/W	R/W	R/W	R/W			R/W	R/W	R/W	R/W						R/W
A-law encoding	R/W	R/W	R/W	R/W			R/W	R/W	R/W	R/W						R/W
IMA ADPCM	R/W									R/W
MS ADPCM	R/W									R/W
GSM 6.10	R/W	R/W		R/W						R/W
G721 ADPCM 32kbps	R/W		R/W
G723 ADPCM 24kbps			R/W
G723 ADPCM 40kbps			R/W
12 bit DWVW		R/W		R/W
16 bit DWVW		R/W		R/W
24 bit DWVW		R/W		R/W
Ok Dialogic ADPCM				R/W
8 bit DPCM														R/W
16 bit DPCM														R/W

From version 1.0.18, libsndfile also reads and writes FLAC and Ogg/Vorbis.

From version 1.0.29, libsndfile can read and write Ogg/Opus.

Some of the file formats I am also interested in adding are:

• Kurzweil K2000 sampler files.
• Ogg Speex.
• MPEG Layer 3 (commonly known as MP3)

Other file formats may also be added on request.

If you are interested in how to add a new format to a libsndfile, you may find this FAQ helpful.