On Wed, 9 Oct 2002, Takashi Iwai wrote:
> At Wed, 9 Oct 2002 12:28:22 +0200 (CEST),
> Jaroslav wrote:
> >
> > On Wed, 9 Oct 2002, Clemens Ladisch wrote:
> >
> > > Ivan Lebedev wrote:
> > > > Is XG-MIDI supported in ymfpci?
> > >
> > > No. Yamaha doesn't release the complete documentation for the YMF754.
> >
> > It's not completely true. The MIDI wavetable is mostly software thing, but
> > due lack of time, nobody has developed the support code for this feature.
> > We have enough information for YMFPCI chips.
>
> i guess the dsp engine on this chip is capable more than we have now.
> for example, we have no effect processing routes on dsp.
> there might be another firmware to support such a thing.
>
> but it's likely true that many things are done on software, too.
I think that effect buffers for YMFPCI are simple loopback ones.
<PCM samples> -> effect in buffer -> driver/effect code ->
effect out buffer -> <PCM samples + mixing to original stream>
So, the effects are pure software thing for YMFPCI.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project http://www.alsa-project.org
SuSE Linux http://www.suse.com
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