or Connect
AVS › AVS Forum › Video Components › Home Theater Computers › HTPC - Linux Chat › Sound card recommendation
New Posts  All Forums:Forum Nav:

Sound card recommendation  

post #1 of 9
Thread Starter 
Hello,

I'm planning on building a mythtv system. I have a receiver and
speakers already setup. I have some questions about connecting a sound
card to the receiver and which sound card will work best for my setup.

I want to simply hook the sound card up to the receiver and have all
sound processed by the receiver and play out of my speakers that
includes DTS and dolby digital from DVDS as well as standard pcm from
mp3s, games, and regular mpgs or avis on my harddrive. What kind of
connections do I need to make from the sound card to the receiver for
this setup? Is an SPDIF connection enough or an optical?

Does the spdif/optical only pass through dvd audio so I would need to
hook up my analog outputs to the receiver somehow to get pcm sound? I
have heard that some people have been able to do use just one digital
output and change decoding settings on their receiver depending on the
sound source. How does that work?

Anyway, I am looking at the following sound cards:

Chaintech av710
m-audio revolution 7.1
audigy 2 ZS
intel 925x motherboard with the high definition audio

My main point of confusion is what sort of features i need on the
soundcard to achieve what I want above. The chaintech is only $25 and
it has a digital output. Is that enough? The audigy seems like it
might be overkill since I just want the soundcard to pass the audio
straight through. I heard the intel high definition audio can sample
everything up to dd. Would that simplify my life?

Thanks a lot in advance for the help,
Kareem
post #2 of 9
I have the turtle beach catalina card which is based on the same chip as the Chaintech av710. In fact the only difference is that the turtle beach card has digital in and out.
Anyway that card can do everything you want it to all over the optical cable, analog cables are not required. I am using the pay version of the oss drivers and settting it up was fairly simple.
-jm
post #3 of 9
I'm using the S/PDIF port on my AV710 without a hitch and it sends all my digital signals out the S/PDIF port to my optical port on my receiver. Can't go wrong for $27 and it includes an optical cable for free.
post #4 of 9
Thread Starter 
Thanks for the quick replies. Do you guys know if the av710 is fully supported in alsa (specifically the spdif connector)? I can't find the card itself in their database. What chipset does it use?

Thanks
Kareem
post #5 of 9
post #6 of 9
Quote:
I want to simply hook the sound card up to the receiver and have all
sound processed by the receiver and play out of my speakers that
includes DTS and dolby digital from DVDS as well as standard pcm from
mp3s, games, and regular mpgs or avis on my harddrive. What kind of
connections do I need to make from the sound card to the receiver for
this setup? Is an SPDIF connection enough or an optical?
A S/PDIF connection can be either optical or coaxial, and yes, a single S/PDIF connection is enough to do everything you want.

Quote:
Does the spdif/optical only pass through dvd audio so I would need to
hook up my analog outputs to the receiver somehow to get pcm sound?
Nope, it'll pass everything with the correct configuration of the driver.

Quote:
I have heard that some people have been able to do use just one digital
output and change decoding settings on their receiver depending on the
sound source. How does that work?
I do this, but I don't change anything on my receiver. I just select the optical in and the receiver switches from ac3 [DD], DTS, and PCM depending on the format of the digital stream.

See the following post for tips on getting this to work with an Envy-24-HT-S based card like the AV-710. http://www.avsforum.com/avs-vb/showt...19#post4852019

Quote:
I heard the intel high definition audio can sample everything up to dd. Would that simplify my life?
I highly doubt that will work any time soon (if ever) in linux unless intel releases a closed-source driver that enables that capability.
post #7 of 9
I purchased the M-audio revolution 7.1 but I failed to get the alsa drivers working for SPDIF. In the end I broke down an purchased the oss drivers and everything works great! I have not given up on getting alsa to work, but I needed my system working as it is my only dvd player. I didn't find that thread listed earlier in this thread (about alsa drivers) but I just looked at it, and it appears I tried everything listed there... I am going to go try it again now though.
post #8 of 9
Thread Starter 
adumare,

Keep me updated if you can get the alsa drivers working. I am still thinking about the m-audio revolution 7.1 and really want to use the ALSA drivers. So I want to make sure it will work.

Thanks alot to everyone else for the helpful replies also.

- Kareem
post #9 of 9
Hello,

I was able to get the alsa drivers working, I now have both AC3 passthrough and standard sound coming through my SPDIF port on my revolution 7.1 using alsa, it sounds beautiful. I did have to make one change to the .asoundrc linked here, it uses 44100 but my sound card made some static on that setting, it worked a lot better at 48000.

Thanks
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: HTPC - Linux Chat
This thread is locked  
AVS › AVS Forum › Video Components › Home Theater Computers › HTPC - Linux Chat › Sound card recommendation