[mythtv-users] Ready to try for Dolby Digital again....
darren.richards at gmail.com
Wed Oct 24 13:55:10 UTC 2007
On 10/24/07, Greg Arena <gma at gmadigitaldesign.com> wrote:
> 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
> 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
> 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
> output or an error message saying that the device is not
> 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
> 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
> online it is cumbersome to always resort to alphabetical
> Thanks a ton,
> Craig L.
I'm also using a Turtle Beach Riviera. I had it working back with version
0.17, but I had to do tweaking with .asoundrc files and such. I went the
MythDora 4.0 route when I upgraded recently, and it was exactly as Greg
described. I set a few frontend settings in the mythtv general menu,
un-muted iec958 in alsamixer, and that's it. Works right out of the box.
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