optical out

NemesiSSS

NemesiSSS

NemesiSSS

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Joined
29 Oct 2002
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in my PC
not sure if i should post here or in mobo section but here goes. I had ma mobo for a year now and ever since i got it the audio out on the back never worked proberly (only playing out out of one speaker) but this didnt bother me coz the front audio port on my case seemed to work fine. That was a uni, using a crappy 2 speaker and sub setup. Now my pc's at home.

At home i have a reviever. The prob i has was that the front audio only put sound to the front speaker surround so i've just got an optical cable, all connected and signal revieved. But im still having the same problem on the front speakers only have sound. not my rear speaker or center have sound. I can switch my amp to send the same signal to all 5 speakers but then i lose the surround sound.

Is this a software issue or a harware issue. any help would be great.

also sorry for any spelling or grammer i just got in from the pub :D

hope this all makes sence

cheerz
Nem
 
Might be to do with sound options in control panel being set to dekstop stereo... try looking to see if there are many different options and have a fiddle.
 
Try opening the audio volume control, selecting the lines you have in (Rear, left, right, sub) and make sure the volume is up/not muted.
 
It's a hardware issue, sounds like your onboard sound doesn't have Dolby Digital Live or DTS Interactive encoding which is required to get more than stereo over an optical cable for everything but pre-encoded sources (e.g. DVDs)

If you absolutely must use optical your only option is to get something like the HDA X-Mystique or X-Plosion or just sort the analogue out and use that for 5.1.
 
Phil99 said:
It's a hardware issue, sounds like your onboard sound doesn't have Dolby Digital Live or DTS Interactive encoding which is required to get more than stereo over an optical cable for everything but pre-encoded sources (e.g. DVDs)

If you absolutely must use optical your only option is to get something like the HDA X-Mystique or X-Plosion or just sort the analogue out and use that for 5.1.
Click to expand...

Hit the nail on the head there. Over optical you can only get PCM stereo sound in games and music. In DVDs you can use SPDIF passthrough to get surround sound, but that's your only option.

If you want surround sounds, either connect in analogue to your amp, or buy an X-mystique or X-plosion HDA card.
 
tom_nieto said:
Hit the nail on the head there. Over optical you can only get PCM stereo sound in games and music. In DVDs you can use SPDIF passthrough to get surround sound, but that's your only option.

If you want surround sounds, either connect in analogue to your amp, or buy an X-mystique or X-plosion HDA card.
Click to expand...

So X-Fi cards don't support Dolby Digital over optical? That's staggering if true.
 
ok, i played a dvd using the optical. The rear speakers had no signal. So i changed back to my phono cable. the rear now have a signal. Now here comes the noob question. how do i get surroundsound using the normal cable. I've looked at the mobo manual and i have one port for front speaker, one for rear and one for sub/center. But how does this work on a receiver. its only has one input. This has almost defo been asked before but when it comes to sound im a complete noob

thanks
Nem
 
Set desktop speakers on the computer, use only Left & Right out to your AV receiver. You should get Pro-Logic. Test Pro-Logic material, and set the amp to Pro-Logic. If the rears sound funny something isn't working right (Pro-Logic downmix to L/R on the amp)

What exactly has Dolby Digital/DTS sound that you need to send to the AV amp digitally? With DVD's you should have SPDIF. With AVI's use FFDSHOW and set to SPDIF for AC-3 and DD. On your soundcard setup set to SPDIF on.

I'm using a M-Audio Revo 5.1 to a AV Pre-amp/processor via coaxial digital and I have no problems with playback, CD's, MP3/OGG's, AVI's with MP3/OGG/DD, and DVD-Videos with DD/DTS.
 
If your amp doesn't have multichannel analogue inputs then you're a bit stuffed as far as surround sound goes unless you buy a DD/DTS encoding card.
 
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