[mythtv-users] Strange sound problem...

zardoz at zardoz.ath.cx zardoz at ZardoZ.ath.cx
Wed May 12 05:27:11 EDT 2004


try a test_ioctl -a and watch for mute and volume-settings.
mute should be 0 volume around 60000

z


On Wednesday 12 May 2004 10:29, Adrian Flynn wrote:
> Steffen Schlink wrote:
> > Joseph A. Caputo schrieb:
> >> Are you using the TV-out of the PVR-350?  If so, the sound is
> >> probably coming out of your -350 instead of your sound card.
> >> MythMusic will use your sound card, though, and so will MythVideo
> >> (unless you're using a patched mplayer).
> >
> > No, I'm not using the PVR TV-out. At the moment I'm just using a
> > regular monitor for Video...
> > But there is no sound at the PVR outputs.
> >
> > The recorded files (even the livetv buffer) are decoded in software
> > when played back, aren't they?
> > So the decoded mpeg audiostream has to go through any soundcard...
> >
> > Any other ideas?
>
> Hi Steffen
>
> Having just added a new PVR250 to my MythBackend whcih also contains a
> cheap bt878 card (using btaudio) I can add the following information:
>     On my development machine being used as a frontend, using an integrated
> Ensoniq 5880 AudioPCI sound card (KM133 chipset), all works well.
>
>     On my living room frontend, which is a Shuttle SN45G (if I remember
> correctly) using the NForce2 chipset, sound _works_ for channels selected
> from the bttv card, but not the PVR250. I have selected /dev/adsp as the
> output device and this is correctly routed to the optical output of the
> Shuttle box (AC3 to SPDIF option is set). I have also tried setting the
> output device to /dev/dsp, but this kills the bttv sourced sound and
> MythMusic etc - in other words, I get no sound at all on this setting.
>
> A CVS version of Myth from 10 May is being used.
>
> I haven't had the time yet to investigate further but if anyone has any
> ideas, I'm all ears!
>
> Regards from Dublin, Ireland
>
> Adrian
>
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