[opus] Opus 1.3-beta released

Jean-Marc Valin jmvalin at jmvalin.ca
Thu Dec 21 21:54:55 UTC 2017


I just released Opus 1.3-beta. This is a beta release towards the
upcoming Opus 1.3. Changes include:
- The spec fixes in RFC 8251 are now enabled by default
- Improvements to the VAD and speech/music classification using an RNN
- Improvements to stereo speech coding at low bitrate
- Added support for ambisonics projection using mapping 3 (disabled by
- Fixes to the CELT PLC

Additionally, as a way to test the upcoming update to opus-tools, we’re
providing Windows binaries built with 1.3-beta. These binaries are based
on libopusenc, which means opusenc is finally able to make use of the
Opus delayed-decision feature to make better speech/music transitions.

Source code:

Win32 binaries:

Please report any issues. Have fun!


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