Refer to the wiki article for a proper dmix configuration.  Can you play two
sounds at once, such as playing an mp3 along with another sound file?  If
you can't, then your dmix config probably needs to be reworked.  If you can,
it's going to be a problem specific to Skype, and honestly, the software
isn't the greatest because of how out-of-date it is.  You may want to check
out Skype/Installation Wiki article to find out how you can use the newest
version of Skype for Windows in Linux with Wine.

P.S. Dmix shouldn't even be an issue because the SBLive is based on the
emu10k1 chipset, which does hardware mixing.

On 5/22/06, Luigi Pinna <mailing-gentoo@sailorferris.com> wrote:
>
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> Alle 04:25, luned́ 22 maggio 2006, Jason Weisberger ha scritto:
> > There could be a couple of things causing this.  Do you have ALSA's
> > OSS Emulation properly configured.  If you do, you should be able to
> > hear sound when you #echo /dev/rand > /dev/dsp .  If /dev/dsp isn't
> > working, please refer to the Gentoo Wiki article on setting up ALSA
> > properly for OSS Emulation.
> > http://gentoo-wiki.com/HOWTO_ALSA_Complete_%28includes_dmix%29
> >
> > You may also want to check on which version of ALSA you're using,
> > because prior to ~0.9, dmix wasn't automatically enabled (software
> > mixing) and if your sound card doesn't support hardware mixing, other
> > devices will tie up /dev/dsp and not allow Skype access.  Skype is
> > very stingy when it comes to sharing /dev/dsp.
> >
> > Let me know what you come up with.
> >
> > Jason Weisberger
>
> So, I don't know...
> I have alsa in the kernel (2.6.16.7 it's alsa-1.0.11) and it works for
> all devices... Probably I have a bad dmix configuration (the default
> one...)... Have you a idea how can I check the dmix configuration? I
> remember you I can't use midi because I have a SBLive!5.1 (it worked
> never...), but my audio system works properly...
> Thanks, Luigi
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-- 
Jason Weisberger
jbdubbs@gmail.com