libopus 1.3-rc

This Opus 1.3-rc release candidate of the upcoming Opus 1.3 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

Again, we’re providing experimental Windows binaries built with 1.3-rc and the upcoming opus-tools and libopusenc.

Source code: opus-1.3-rc.tar.gz
Win32 binaries (experimental): opus-tools-test-1.3-rc.zip