[Speex-dev] RTP profile draft!
Jean-Marc Valin
Jean-Marc.Valin at USherbrooke.ca
Wed Nov 30 13:45:05 PST 2005
Hi Aymeric,
> mode: Speex encoding mode. Can be {1,2,3,4,5,6,any} defaults to
> 3 in narrowband, 6 in wide and ultra-wide.
>
> Is mode equivalent to the "quality" parameter of speex?
No. The quality parameters all map to a certain mode, but they are not
the same. See http://www.speex.org/manual2/node9.html for a list of the
modes.
> Just for additionnal note, it seems the word "mode" is also
> used for talking about the *-band things:
> "Each frame contains both "mode" (narrowband, wideband or
> ultra-wideband)"
>
> that's an additionnal confusion that may need a fix...
I think the draft only uses "mode" for bitrate and uses "bandwidth" for
narrowband vs wideband. I guess it may be confusing that libspeex uses
mode for the sampling rate and sub-mode for the bitrate. Can you suggest
a better term to use in the draft?
Jean-Marc
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