[opus] Understanding libopus parameters

Jean-Marc Valin jmvalin at jmvalin.ca
Thu Nov 7 18:03:10 PST 2013

I'm not sure what your exact question is, but libopus is designed to
make the best encoding decision given the bit-rate. Even if you give it
48 kHz stereo, it may end up only encoding 8 kHz mono if there aren't
enough bits.


On 11/07/2013 05:18 PM, Sergey G wrote:
> Hi,
> I'm looking for the description of possible combinations of libopus parameters. For instance in case of low bitrate encoding (voip application, SILK part) it does not have sense to set 2 channels. Audio applications (CELT part) widely use 2 channels.
> What about HYBRID mode? Is it closer to voip or audio applications? What is the typical number of channels? Can constant bitrate be used in this mode?
> Thanks & regards,
> Sergey
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