[Speex-dev] Patch for sb_celp.c and a few questions

Jean-Marc Valin jean-marc.valin at usherbrooke.ca
Sat Dec 9 11:18:30 PST 2006

> In the current version in SVN the wideband encoder/decoder doesn't
> correctly pass the parameter of SPEEX_SET_SUBMODE_ENCODING to the
> underlying narrowband codec. My patch fixes this.

Thanks. Strange that this didn't cause problems before.

> Then I have a question regarding the EPIC_48K mode. Should the
> perceptual enhancer work with this mode? At the moment it is enabled
> by default but only produces a very loud noise.

EPIC_48K wasn't update in a while. I've recently applied a few patches
to it, but it needs a few more (the enhancer and the LPC window).

> Finally I would like to ask what your near future plans for the
> (fixed-point) AGC are. I want to add a speaker phone mode to a PDA
> based VoIP application and AGC would be very useful here. I'm no DSP
> expert but if I can help you somehow with development or testing,
> please let me know.

None yet in the short-term, although the long-term plan is for
everything to be in fixed-point.


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