Vorbis
Royalty-free lossy audio encoding format / From Wikipedia, the free encyclopedia
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Vorbis is a free and open-source software project headed by the Xiph.Org Foundation. The project produces an audio coding format and software reference encoder/decoder (codec) for lossy audio compression, libvorbis.[10] Vorbis is most commonly used in conjunction with the Ogg container format[11] and it is therefore often referred to as Ogg Vorbis.
Filename extension |
.ogg[1] |
---|---|
Internet media type |
application/ogg, audio/ogg, audio/vorbis, audio/vorbis-config |
Developed by | Xiph.Org Foundation |
Initial release | May 8, 2000 (2000-05-08)[2][3] |
Latest release | |
Type of format | Lossy audio |
Contained by | Ogg, Matroska, WebM |
Standard | Specification |
Open format? | Yes[5] |
Free format? | Yes[6] |
Website | https://xiph.org/vorbis/ |
Developer(s) | Xiph.Org Foundation |
---|---|
Initial release | July 19, 2002 (2002-07-19) |
Stable release | |
Written in | C |
Type | Audio codec, reference implementation |
License | Modified BSD license[8][9] |
Website | Xiph.org downloads |
Vorbis is a continuation of audio compression development started in 1993 by Chris Montgomery.[12][13] Intensive development began following a September 1998 letter from the Fraunhofer Society announcing plans to charge licensing fees for the MP3 audio format.[14][15] The Vorbis project started as part of the Xiphophorus company's Ogg project (also known as OggSquish multimedia project).[16][17] Chris Montgomery began work on the project and was assisted by a growing number of other developers. They continued refining the source code until the Vorbis file format was frozen for 1.0 in May 2000.[2][3][18] Originally licensed as LGPL, in 2001 the Vorbis license was changed to the BSD license to encourage adoption, with the endorsement of Richard Stallman.[19][20] A stable version (1.0) of the reference software was released on July 19, 2002.[21][22][23]
Since February 2013,[24] Xiph.Org has stated that the use of Vorbis should be deprecated in favor of the Opus codec, which is also a Xiph.Org Foundation project and also free and open-source. Compared to Vorbis, Opus can simultaneously achieve higher compression efficiency—per both Xiph.Org itself and third-party listening tests[25][26]—and lower encode/decode latency (in most cases, low enough for real-time applications such as internet telephony or live singing, rarely possible with Vorbis).[27]