Opus Codec
Looking for an audio codec operating at higher bit rates than Codec2? Have a look at Opus Codec which is working in the 6 kbps to 510 kbps range. It can scale from low bitrate narrowband speech to very high quality stereo music. Supported features are:
- Bitrates from 6 kb/s to 510 kb/s
- Sampling rates from 8 kHz (narrowband) to 48 kHz (fullband)
- Frame sizes from 2.5 ms to 60 ms
- Support for both constant bitrate (CBR) and variable bitrate (VBR)
- Audio bandwidth from narrowband to fullband
- Support for speech and music
- Support for mono and stereo
- Support for up to 255 channels (multistream frames)
- Dynamically adjustable bitrate, audio bandwidth, and frame size
- Good loss robustness and packet loss concealment (PLC)
- Floating point and fixed-point implementation
Check it out over at http://opus-codec.org/