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Opus Open-Source Lossless Audio Codec Sees Major Update with Many Improvements

Opus 1.2 is a stable release that comes about three and a half years after the 1.1 series of the codec, adding exciting changes like music and speech quality enhancements in the 32-48 kb/s and 12-20 kbit/s range respectively, much better VBR encoding for the hybrid mode, as well as SSE CELT and generic optimizations. Opus 1.2 also features DTX support for the CELT mode, various performance improvements to SILK CBR handling, support for directly encoding packets up to 120 ms, better usage of a wider speech bandwidth, including fullband speech starting at 14 kbit/s, as well as various under the hood fixes.