[asterisk-dev] Transcoding: Codec 2, iLBC 20, SILK, GSM-EFR, AMR(-WB)

[Tzafrir Cohen]

On Sun, Dec 06, 2015 at 08:42:42PM -0600, Matthew Jordan wrote:

> > pass-through including fmtp negotiation (level 1)
> >  |  pass-through plus library detection in ./configure (level 2)
> >  |   |  transcoding module in codecs/codec_* (level 3)
> >  |   |   |
> > [x] [x] [x] Codec 2 <http://www.rowetel.com/codec2.html>
> >
> 
> This looks to be fine.

I haven't been following codec2 closely, but anyway.

What exactly does "codec2" mean? Is there a well-defined bit-rate and
such? This page mentions codec2 at 2400bps and at 3200bps. I read it is
used at even lower rates. If I get a "codec2" stream, which rate (and/or
other parameters) are used?

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               Tzafrir Cohen
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