[pulseaudio-discuss] tv-card -> on-board -> sound-card

[Andreas Herrmann]

Hi,

Michał Sawicz wrote:
> It seems that XawTV doesn't use Pulse as the sound output device. If
> it doesn't have native Pulse support you need to use the alsa-pulse
> plugin to have XawTV play through Pulseaudio.

I think XawTV doesn't create any sound at all, but tells the tv-card to
produce sound at a specified volume level. But I'm not sure how the
volume regulation with XawTV works exactly.

Tanu Kaskinen wrote:
> You have to copy (record and play back) the on-board line-in to
> Audigy. It would make most sense to do this completely inside PA, but
> unfortunately it's not supported. A crappy (really) solution is to
> record the input with parec and pipe the audio to pacat. The command
> would look something like this:
> 
> $ parec -d <on-board source> | pacat -d <audigy sink>

It would have been interesting to try that, but when I booted my
computer today ALSA decided for some unknown reason not to activate my
Audigy sound card although the module was loaded and hwinfo --sound told
me that my audigy was ok. Yesterday it worked during several reboots.
After deactivating the on-board chip ALSA activated the audigy, but
activating the on-board chip again resulted in ALSA ignoring the audigy.
Maybe yesterday was a 'two sound chip day' and today isn't ;).

The audigy card came with a sound hub, which has additional line-in
connectors. Fortunately I found a 2m stereo cable at home which I could
use to plug the tv-card to the sound hub on my desk.
Suddenly the tv-sound came out of the speakers without any additional
configuration. Maybe this solution is even more crappy, but without the
on-board chip being activated, it's line-in is useless. And if ALSA
ignores the audigy when the on-board chip is activated this option
doesn't apply.

Anyway, thank you very much for your fast replies!
Andreas