[FFmpeg-soc] [soc]: r623 - in qcelp: doc/TODO qcelpdec.c

Reynaldo Verdejo rverdejo at gmail.com
Wed Aug 8 19:30:17 CEST 2007


Hi Diego

On 8/8/07, Diego Biurrun <diego at biurrun.de> wrote:
>
> On Wed, Aug 08, 2007 at 07:10:40AM +0200, reynaldo wrote:
> >
> > Log:
> > formant synthesis filter and a adaptive posfiltering's detilt
>
> an adaptive, posTfilter


Will fix.

What's detilt?


Tilt in this context is the spectral deviation induced by the adaptive
postfilter. 'Detilt' is the
action needed to correct this situation, what it does it to effectively
offset the tilt/deviation
so it becomes less noticeable. That's the way I understand it at least,
others might have
better/more correct explanations.


> --- qcelp/qcelpdec.c  (original)
> > +++ qcelp/qcelpdec.c  Wed Aug  8 07:10:40 2007
> > @@ -716,6 +718,11 @@ static int qcelp_decode_frame(AVCodecCon
> >      qcelp_lsp2lpc(qtzd_lspf, lpc);
> > +    /* apply formant synthesis filter over pitch pre filter's output */
>
> Apply formant synthesis filter over the pitch prefilter output. */


Fixed on my tree.

> +    /* WIP adaptive postifilter here */
>
> postfilter


Same.

Diego


Thanks.

  Reynaldo
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