[mythtv-users] Still no AC3 passthrough...

[Greg Arena]

Darren,
 
	I un-muted the IEC958 Output in alsamixer. Until I did
that, I was getting no audio at all. So that part appears to be
correct - once I did that, I was able to get 2-channel audio
working before I tried getting the pass-through to work again.
	I'd appreciate it if you could tell me what settings are
working for you. I have a feeling I may have tried them already.
I'm beginning to think the problem may be somewhere else because,
as I said in another post, running "aplay -L" results in a
segmentation fault and I did a lot of experimenting, upgrading
ALSA, etc.

Thanks,
Greg

________________________________

From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Darren
Richards
Sent: Friday, October 12, 2007 4:03 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] Still no AC3 passthrough...


On 10/12/07, Greg Arena <garena6 at comcast.net> wrote: 

	        I posted yesterday with problems getting the AC3
	passthrough to work. I was told that the driver for the
SB Audigy
	4 I had bought didn't support this. So after switching
from the
	SB Audigy 4 to a Turtle Beach Riviera card which I was
told had 
	full support for this, I'm still stuck with the same
problem: No
	AC3 passthrough. Audio works fine for 2-channel output
through
	the SPDIF optical out for SD and HD broadcasts if I shut
off AC3
	passthrough in the setup. But otherwise, I still get
silence or 
	static when I turn it on.
	        Can somebody out there with a Turtle Beach
Riviera (or
	anybody using the snd_cmipci ALSA driver) offer any
ideas? Or,
	can you please send me your ALSA config files and tell me
how you 
	have things set up in the "Audio" section of the front
end's
	general setup screen?
	        As I said before, I've gone through all the
howto's and
	wiki's I can find, and none has been helpful. 
	
	Thank you,
	Greg
	
	



I have the Turtle Beach Riviera, and it pretty much just worked
without any tweaking or .asoundrc files or anything.  The only
thing I had to do was fire up alsamixer and un-mute the
appropriate channel (IEC958 if I remember correctly.)  I can't
remember what my specific settings were in the myth frontend
setup, but if un-muting IEC958 doesn't work for you, I can check
and post it. 

-darren