Vorbis is named after a Discworld character Exquisitor Vorbis in Small Gods by Sir Terry Pratchett. Compared to Vorbis, Opus can simultaneously achieve higher compression efficiency-per both Xiph.Org itself and third-party listening tests -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). Since February 2013, 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. aoTuV improvements were intended to be merged back into the reference codebase periodically, but that only happened once in libvorbis 1.1, due to the lack of upstream resources for reviewing further patches. There are also some fine-tuned forks, most notably aoTuV, that offer better audio quality, particularly at low bitrates. The Xiph.Org Foundation maintains a reference implementation, libvorbis.
#Vorbis opus mp3 comparison software
A stable version (1.0) of the reference software was released on July 19, 2002. Originally licensed as LGPL, in 2001 the Vorbis license was changed to the BSD license to encourage adoption, with the endorsement of Richard Stallman.
#Vorbis opus mp3 comparison code
They continued refining the source code until the Vorbis file format was frozen for 1.0 in May 2000. Chris Montgomery began work on the project and was assisted by a growing number of other developers. The Vorbis project started as part of the Xiphophorus company's Ogg project (also known as OggSquish multimedia project).
Intensive development began following a September 1998 letter from the Fraunhofer Society announcing plans to charge licensing fees for the MP3 audio format. Vorbis is a continuation of audio compression development started in 1993 by Chris Montgomery. Vorbis is most commonly used in conjunction with the Ogg container format and it is therefore often referred to as Ogg Vorbis. The project produces an audio coding format and software reference encoder/decoder ( codec) for lossy audio compression. Vorbis is a free and open-source software project headed by the Xiph.Org Foundation.
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