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OPUS is now standardized in IETF RFC 6716.
Additionally it has been declared one of the two mandatory audio-codecs for
WebRTC (OPUS and fallback to G.711 for PSTN-compatibility).
It can handle packet-loss up to 30% with very few distortions.
It also provides G.711-quality-mono at 8 kb/s and HIFI-Stereo at 48 kb/s (20
kHz bandwidth).
You can even use it for Video-on-Demand with surround-sound (up to 255
channels)! ;-)
Specs:
Bit-rates 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 bit-rate (CBR) and variable bit-rate (VBR)
Audio bandwidth from narrowband to full-band
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
See http://www.opus-codec.org/ for information and
http://opus-codec.org/examples/ for sound-samples!
Original comment by renne.ba...@gmail.com on 25 Sep 2012 at 11:52
Original issue reported on code.google.com by
stephen....@gmail.com
on 15 Apr 2011 at 3:22The text was updated successfully, but these errors were encountered: