[mythtv-users] ac3 passthrough problems
Thomas Börkel
thomas at boerkel.de
Sat Sep 23 15:36:04 UTC 2006
HI!
Michael T. Dean wrote:
> Actually, it looks like MythTV completely ignores the Placebo--I mean
> Passthrough output device. ;)
>
> (The only occurrence of "PassThroughOutputDevice" in
> myth{tv,plugins,themes} is in the settings page.)
That's strange, because it actually works for me, as intended.
I have no .asoundrc. I have configured ALSA:default (which is analog in
Alsa 1.06) as normal device and ALSA:spdif as passthrough device.
Now, when I have NOT checked AC3 passthrough and play a AC3 5.1
recording, I get only Dolby Surround on my receiver. And I get analog
sound on my TV (using soundcard's analog output), too.
When I check AC3 passthrough and play AC3 5.1, then I get Dolby Digital
5.1 on my receiver, but silence on my TV.
When I play MP2 sound, then the AC3 passthrough switch does not change
anything. I always get Dolby Surround on my receiver and sound on my TV.
So, if the passthrough device is being ignored by Myth, then it must use
ALSA:spdif by it's own choice.
Thomas
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