Tags: neonkore/opus
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Opus 1.3.1 Opus 1.3.1 is a minor release that fixes an issue with the analysis on files with digital silence (all zeros), especially on x87 builds (mostly affects 32-bit builds). It also includes two new features: - A new OPUS_GET_IN_DTX query to know if the encoder is in DTX mode (last frame was either a comfort noise frame or not encoded at all) - A new (and still experimental) CMake-based build system that is eventually meant to replace the VS2015 build system (the autotools one will stay).
Opus release 1.3 Opus 1.3 is the latest major release of Opus and brings many improvements, including: - 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 - Support for ambisonics coding using mappings 2 and 3 - Making it possible to use SILK down to bitrates around 5 kb/s - Using wideband encoding down to 9 kb/s - Minor quality improvement on tones - Security improvements Notable bug fixes include: - Fixes to the CELT PLC - Bandwidth detection fixes
Opus release 1.3-rc2 This is a second release candidate for the upcoming 1.3 release and includes: - Fixing an issue with bandwidth detection - Ambisonics support now exabled by default - Ambisonics now uses families 2 and 3 (instead of experimental 253 and 254) - Hardening is now enabled by default
Opus release 1.3-rc This is a release candidate for the upcoming 1.3 release and includes: - Making it possible to use SILK down to bitrates around 5 kb/s - Using wideband encoding down to 9 kb/s - Improving security (including a new --enable-hardening option) - Minor quality improvement on tones - Improving Ambisonics support (still experimental) - Minor bug fixes
Opus release 1.3-beta This is a beta release towards the upcoming 1.3 release. 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 default) - Fixes to the CELT PLC
Opus release 1.2
Opus 1.2 is the latest major release of Opus and brings many improvements,
including:
- Speech quality improvements especially in the 12-24 kbit/s range
- Improved VBR encoding for hybrid mode
- More aggressive use of wider speech bandwidth, including fullband speech
starting at 14 kbit/s
- Music quality improvements in the 32-48 kb/s range
- More optimizations for x86 (SSEx) and ARM Neon
- Support for directly encoding packets up to 120 ms
- DTX support for CELT mode
- SILK CBR improvements
- Support for all of the fixes in draft-ietf-codec-opus-update-04 (the mono
downmix and the folding fixes need --enable-update-draft)
- Many bug fixes, including integer overflows discovered through fuzzing
(no security implications)
Opus release 1.2-rc1 This is the first release candidate for the upcoming Opus 1.2 release. If no issues are found with it, it will soon become 1.2-final, so I encourage everyone to give it a try. Changes compared to 1.2beta include: - Improves quality on files with powerful tones that cause MDCT leakage - Improves bit allocation on mode transitions (CELT to/from SILK/hybrid) - More ARM Neon optimizations - Fixes to the speech/music detection at the very beginning of files - Fixes to the unit tests (fixes illegal instructions and --disable-static)
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