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SubjectRe: Alsa, Kernel OSS
At Mon, 3 Mar 2003 17:09:46 +0100,
Marc Giger wrote:
>
> > > Why can't I play more than one sources on the same time with such a
> > > card? All programs which would access /dev/dsp blocks until the other
> > > programs frees the device... It isn't very useful.
> > >
> > > I have no such problems with multiple sources as example on my
> > > SBLive or on my yamaha sound card with the snd-ymfpci driver.
> > >
> > > Do I miss some settings?
> >
> > no, it's the hardware limitation.
>
> Ok, I see..cheap hardware..
>
> But multiple sources on window$ works..
> In this case, windows mixes the sources in software - right?

yes.

> Is it a big "problem" to do this also in Linux?
> This would be an interesting work for me:-)
> Perhaps a program as interface between userspace and alsa-driver?

the latest alsa-lib supports the dynamic software mixing.
it works like a charm :)

> Or better directly in the alsa-driver?

no, basically it's a user-space job.


ciao,

Takashi
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