

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. 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.
