[mythtv-users] ac3 passthrough problems
list-mythtv at bluecamel.eml.cc
Sun Oct 1 00:43:40 UTC 2006
On Sep 30, 2006, at 4:57 PM, Richard Krehbiel wrote:
> I'm building a mythtv system now (about as slowly as anyone
> possibly can), and I'm stumped on the S/PDIF problem.
> I have an MSI K9NGM2-FID - Socket AM2, nVidia GeForce 6150, and I'm
> using on-board sound with Intel HDA drivers (snd-intel-8x0). I
> installed Fedora Core 5, current updates. I've got a coax from my
> S/PDIF out to my Onkyo 304, and Onkyo set to consume coax. (It
> works from an actual DVD player.)
Find a .wav file on your system. Check /usr/share/sounds/alsa/ and
look for something like "Front_Left.wav". Then try "aplay -D spdif /
usr/share/sounds/asla/Front_Left.wav" and see if you get any output
> I haven't done any alsa configuration. I looked into it, but
> frankly alsa is impenetrable (is there a good doc? I haven't seen
> one) - plus I've read comments saying it should work out of the box.
At the very least run "alsamixer" and make sure that your PCM is
unmuted and set to a reasonable volume. Also look for an iec958
device and make sure it is unmuted as well.
> I've got a DVD in right now. I'll play it:
> mplayer -v -ao alsa -afm hwac3 -monitoraspect 16:9 -dvd-device /dev/
> cdrom dvd://1
Try this mplayer command again after you have:
1) Run alsamixer as directed above
2) Verified that aplay can generate some sounds for you
If these steps don't help you post the output for the commands "aplay
-l" and "aplay -L".
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