[mythtv-users] Ready to try for Dolby Digital again....

[Greg Arena]

I was in this boat not too long ago. After posting a similar
question here, I ended up doing the following:

1. I bought a Turtle Beach Riviera card for the Dolby Digital
out. This has stable Linux support (the snd_cmipci ALSA driver
handles it), and it comes with a SPDIF optical output. I assume
there's something out there that could convert this into a
coaxial output if you needed it. The card costs only $30 and
requires a conventional PCI slot.

2. Use MythDora 4.0 to set up a clean Myth installation if you
can. In the process of trying to get Dolby Digital working first
using my motherboard's built-in audio and second using a Sound
Blaster Audigy 4 (I later found out Linux doesn't support this
function on this card so now I've got to sell it on eBay), I must
have fouled up the ALSA configuration to the point where it just
wouldn't send the Dolby Digital through the Turtle Beach card no
matter what I did. At least with MythDora, it had a known good
mix of packages.

Since doing these two things, I have Dolby Digital and DTS
pass-through working fine. I had to change a setting in alsamixer
to activate the SPDIF output port on the card and change a few of
the audio settings in the frontend setup, but there was no
fiddling beyond that. I get the Dolby 5.1 audio on HDTV
programming, and Dolby/DTS soundtracks play back fine from DVD's.
But in my case, I was fortunate that I did this before I had gone
too far with building up a library of recordings, videos, and
other stuff.

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Craig
Lovold
Sent: Wednesday, October 24, 2007 8:23 AM
To: mythtv-users at mythtv.org
Subject: [mythtv-users] Ready to try for Dolby Digital again....

OK, I gave up over a year ago but I think I am ready to try
again....

I want Dolby Digital output from MythVideo/Xine.  Is that too
much to 
ask for?  I fought with it for days a year ago and eventually
gave up.

I'll buy whatever card it takes to make it work.  Does anyone
have a 
configuration that will make it work?

Right now I have a Chaintech AV-710 audio card and I have managed
to get 
digital audio output, but cannot get it to work with anything but

2-speaker output.  Things I have tried have led to either no
sound 
output or an error message saying that the device is not
ready/available.

I am currently using the latest MythBuntu release, so things
should be 
fairly up to date.

Anyone got a prebuilt solution?

Also, while I love MythVideo and really appreciate the work done
there, 
I have to ask why they limit each movie to 1 genre?  It makes it
hard to 
categorize my movies (comedy thrillers, etc).  With over 300
movies 
online it is cumbersome to always resort to alphabetical
viewing...

Thanks a ton,

Craig L.

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