Re: [OT] ALSA userspace API complexity

Hannu Savolainen
2006-01-05T23:59:37Z

On Thu, 5 Jan 2006, Lee Revell wrote:

> On Fri, 2006-01-06 at 01:06 +0200, Hannu Savolainen wrote:
> > We have not received any single bug report that is caused
> > by the concept of kernel mixing.
> > Kernel mixing is not rocket science. All you need to do is picking a
> > sample from the output buffers of each of the applications, sum them
> > together (with some volume scaling) and feed the result to the
> > physical
> > device.
>
> Hey, interesting, this is exactly what dmix does in userspace. And we
> have not seen any bug reports caused by the concept of userspace mixing
> (just implementation bugs like any piece of software).
Having dmix working in user space doesn't prove that kernel level mixing
is evil. This was the original topic.

Best regards,

Hannu
-----
Hannu Savolainen (hannu@opensound.com)
http://www.opensound.com (Open Sound System (OSS))
http://www.compusonic.fi (Finnish OSS pages)
OH2GLH QTH: Karkkila, Finland LOC: KP20CM