Opus
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| + | '''Opus''' is a lossy audio compression format designed by the Internet Engineering Task Force (IETF) for applications requiring high-quality, low-delay audio transmission (e.g. telephony or network music performance). It incorporates technology from Skype's [[SILK]] codec and Xiph.org's [[CELT]] codec. | ||
| − | + | Opus-coded audio is usually found inside an [[Ogg]] container (where it carries the extension <code>.opus</code>) or in a [[WebM]] container. | |
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== Information == | == Information == | ||
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* [http://www.opus-codec.org/testvectors/opus_testvectors.tar.gz Bitstream conformance set] | * [http://www.opus-codec.org/testvectors/opus_testvectors.tar.gz Bitstream conformance set] | ||
* [http://people.xiph.org/~greg/opus_testvectors/ The .opus test set] (including intentionally malformed files) | * [http://people.xiph.org/~greg/opus_testvectors/ The .opus test set] (including intentionally malformed files) | ||
| + | * [https://jmvalin.dreamwidth.org/16616.html How Opus Came To Be] | ||
== See Also == | == See Also == | ||
Revision as of 14:11, 8 April 2019
- Not to be confused with the Opus-CBCS BBS software.
Opus is a lossy audio compression format designed by the Internet Engineering Task Force (IETF) for applications requiring high-quality, low-delay audio transmission (e.g. telephony or network music performance). It incorporates technology from Skype's SILK codec and Xiph.org's CELT codec.
Opus-coded audio is usually found inside an Ogg container (where it carries the extension .opus) or in a WebM container.
Contents |
Information
- RFC 6716 - Definition of the Opus Audio Codec
- Ogg Encapsulation for the Opus Audio Codec (draft-ietf-codec-oggopus-00)
- RTP Payload Format for Opus Speech and Audio Codec (draft-spittka-payload-rtp-opus-03)
- Opus, the Swiss Army Knife of Audio Codecs (Presentation at linux.conf.au 2012]
Software
The Opus Codec downloads page contains opus-tools (encode / inspect / decode) .opus files and opusfile, an API for developers.
foobar2000 can play back and encode Opus files (with the Free Encoder Pack
Links
- Bitstream conformance set
- The .opus test set (including intentionally malformed files)
- How Opus Came To Be
