[mythtv] Audio update with volume

[Kyle Rose]

> I haven't been able to get an -ESTRPIPE.  With an Intel ICH4 I have been 
> able to consistently get underruns just by using Alsa 1.0.6.  Drop back 
> to 1.0.5a and everything works.  The latest patches have been tested 
> with Alsa 1.0.5a and Alsa CVS (on Intel ICH4) without underruns (haven't 
> tried 1.0.6 again).

I've filed a bug about this problem with the ALSA folks (I have ICH5,
which isn't well-supported by 1.0.5) but it doesn't even seem like
anyone's looked at it.  Bug # is 0000589 if you want to add a
supporting claim.

  https://bugtrack.alsa-project.org/alsa-bug/view.php?id=589

Cheers,
Kyle