[mythtv-users] AC3 through SPDIF?

Petr Stehlik pstehlik at sophics.cz
Mon Jan 9 16:29:02 UTC 2006


Chris Lynch píše v Ne 08. 01. 2006 v 10:26 -0800:
> All,
> 
> I'm trying to get the last set of config done on my recently upgraded
> MythTV box.  I finally did the HDTV plunge over the holidays and have
> everything working with the exception of AC3 passthrough on DVB/HD
> recordings (it works fine for 2 channel and even works for xine with
> AC3).  This is on an Creative Audigy 2 zs card. 
> 
> Here's what I have done and have working so far:
> - I have AC3 passthrough turned on in MythTV
> - I am outputting to ALSA:spdif in MythTV
> - I can pick up AC3 in Xine playing movies
> - Analog NTSC broadcasts play sound just fine over spdif (2 channel) 
> - OTA ATSC broadcasts play no sound unless I turn off the 'AC3
> passthrough' option Myth.  Then they play as 2 channel stereo.

See my thread "real AC3 passthrough". I doubt anyone got it working
correctly. Actually I have the 5.1 AC3 sound OK with "ALSA:spdif" and
same .asoundrc as you but then analog sound is missing.

Petr




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