Draft:Open Audio Codec

Open Audio Codec
Filename extension
.opus
Developed byAlliance for Open Media
Type of formatAudio file format
CompressionLossy
liboac
DeveloperAlliance for Open Media
Initial releaseTBA
Written inC
TypeAudio encoder and decoder
LicenseBSD 3-Clause
RepositoryGitHub

Open Audio Codec (OAC) is an upcoming open, royalty-free lossy audio codec developed by Alliance for Open Media. It is positioned as a successor to Opus.

Features

The current specifications for OAC are identical to Opus, with support for sampling rates from 8-48 kHz, bitrates from 6-510 Kbit/s (both constant and variable), mono and stereo support and other features.[1][2]

History

OAC entered development in February 2026. The specifications and reference implementation for OAC were forked from Opus.[1]

Support

A reference implementation of OAC, liboac, is free software licensed under the BSD 3-Clause License.[2]

See also

  • AV2, an upcoming video codec also developed by AOMedia

References

  1. ^ a b Davenport, Corbin (2026-02-23). "This new audio format could replace MP3 and Opus". How-To Geek. Retrieved 2026-06-03.
  2. ^ a b Menoger, Extor (2026-02-22). "Альянс AOMedia начал разработку нового звукового кодека OAC на базе Opus". PlayGround.ru (in Russian). Retrieved 2026-06-03.

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