[mythtv-users] sound problems

[matt lutz]

On Thu, Feb 28, 2008 at 9:53 PM, Brad DerManouelian <myth at dermanouelian.com>
wrote:

> On Feb 28, 2008, at 6:36 PM, matt lutz wrote:
>
> On Tue, Feb 26, 2008 at 12:46 AM, matt lutz <myth.matt.lutz at gmail.com>
> wrote:
>
> >
> >
> > On Tue, Feb 26, 2008 at 12:38 AM, matt lutz <myth.matt.lutz at gmail.com>
> > wrote:
> >
> > >
> > > hey all,
> > >
> > > I'm having a frustrating sound problem, which hopefully someone can
> > > help me with.  I've been using the spdif output on my M2N-E motherboard for
> > > a while.  It was working fine until the last day or so.  For some reason, I
> > > stopped getting any sound output when playing any type of non-passthrough
> > > sound.  So recordings from my analog card, & music didn't play sound, but my
> > > DVDs & HDTV media worked fine.  I thought maybe there was a problem with my
> > > sound card, so I plugged in my turtle-beach USB sound card.  It worked a
> > > little better - both types of media had sound, but the 'stereo-only' sounces
> > > had horribly garbled sound.
> > >
> > > I'm not really sure where to go from here.  There are no error
> > > messages in the log that I can see.. not sure what would have caused this.
> > > The only change I've made is adding a USB DVD drive, and ripping a couple of
> > > DVDs.  I can't see how that would effect the sound.  any ideas?
> > >
> > > thanks,
> > > matt
> > >
> > >
> > sorry, I should probably mention that I'm running mythbuntu 7.10-64, and
> > myth 20.2
> >
> >
> >
>
> Does anyone have any ideas on this?  I haven't been able to get very far.
> It seems to be a mythtv thing, as I can play recordings back via xine with
> no problems...  and there are no errors, so I don't even really know where
> to go.
>
>
> Unplug the optical cable from your receiver. Can you physically see light
> coming out of the end of the cable when it's on? If there's light coming
> out, you're sending signal and there is some myth to ALSA issue. If there's
> no light coming out, you're likely not sending signal to the right place in
> ALSA. At least it's a place to start...
>
>
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>
Brad,

thanks for the reply.  Light's definately coming out.  The AC3 passthrough
works (or did, until I broke it a few minutes ago).  It almost sounds as if
the volume is turned up really high before it gets to my receiver.  I check
'alsamixer' though, and it seems fine.

Matt
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