[linux-audio-dev] XAP spec & PTAF comments [merge]

[Steve Harris]

On Sat, Feb 08, 2003 at 12:03:01 -0800, Tim Hockin wrote:
> > Branching to fill your delay line with explit 0.0's intead of reading them
> > from a buffer of zeros doesn't help. We allready know that reverbs cant
> > support it at all. Efficieny reasons would also rule out flangers, delays,
> > most filters and choruses.
> 
> Maybe I'm missing something, but how can a test that amounts to this NOT be
> faster than doing any work at all?
> 
> if (me->silent && XAP_BUF_SILENT(me->in[0]) && XAP_BUF_SILENT(me->in[1])) {
> 	return;
> }

You still have to roll your internal delay lines, its just that you know
they will only have zeros going into them.
 
- Steve