Xiph kept building formats nobody had to license

The people and foundations behind the formats · Short

The Xiph.Org Foundation's case was simple: a format everybody uses should not have an owner.

Why a foundation existed at all

In the late 1990s, the MP3 patent situation made the point forcefully. Fraunhofer and Thomson held the key patents on MP3 encoding and began demanding license fees from anyone distributing an encoder. The format was everywhere, and suddenly everywhere had a price attached. Xiph's response was to build replacements from the ground up — formats that would be royalty-free by design, not by accident.

Vorbis came first, a lossy audio codec released alongside the Ogg container in 2000. It was competitive with MP3 and AAC at equivalent bitrates and carried no per-unit licensing cost. Theora followed — a video codec derived from On2's VP3 codec after On2 donated the code to the public domain. Neither format conquered its market, but that was not entirely the point. They proved the model was viable and kept the argument alive.

FLAC — Free Lossless Audio Codec — landed the clearest practical win. Lossless compression means every bit of the original audio survives decoding; there is no quality trade-off, only a smaller file. FLAC became the standard archival format for music preservation among enthusiasts and labels alike, with hardware support eventually appearing in portable players, home theater receivers and streaming services.

Opus, standardised by the IETF in 2012, was Xiph's sharpest work. Developed jointly with Mozilla, it combined a speech codec (SILK, contributed by Skype) with CELT, Xiph's own low-latency music codec. The result covered everything from narrowband telephone audio to high-fidelity stereo, outperforming competing codecs at most bitrates in independent listening tests. It is now the default audio codec in WebRTC and widely used in voice-over-IP and streaming.

Xiph never controlled what it built. The code was open, the specifications were open, and the patents — where any were filed — were licensed without royalty. The Alliance for Open Media inherited part of that ethic when it built AV1, and Opus rode into that ecosystem as AV1's natural audio companion. The formats outlasted the moment that made them necessary.