Windows 7 and SPDIF output to reciever - AVS Forum
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post #1 of 8 Old 10-12-2010, 10:46 AM - Thread Starter
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I am unable to play Audio files using the Spdif output of 3 tested USB audio devices.

When playing any AAC, DD, or DTS files it just sounds like static on a receiver via an optical cable over SPDIF.

I'm currently testing with the following product:
http://siig.com/ViewProduct.aspx?pn=IC-710112-S1

For example:
if you download "The other side" DD 5.1 wave from http://kellyindustries.com/sounds.html and try and play it using
the supplied windows media player 12 which comes with windows 7. Nothing but static comes out of the receiver.
Also the receiver only shows 2 channel pcm as the incoming audio stream.

I have gone into the hardware and sound -> Sound -> then clicked properties on "Digital Output" -> Supported formats tab -> and clicked DTS and DD. On that tab I hit the Test button and low and behold both DTS and DD play the test sound correct through Spif line over to the receiver.

Any help would be greatly appreciated.

Thanks
~Jeff
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post #2 of 8 Old 10-13-2010, 07:11 PM
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I have gone through 4 sound cards the last couple weeks trying to acheive more than 2 channel sound. The end results have all SUCKED. It seems there really isn't enough multi channel support in the computer world yet.

all the high end audio cards had friggin headphone jack connections. The ones with tosslink are ONLY getting me 2 channels of audio, how the hell do I get more???
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post #3 of 8 Old 10-19-2010, 10:05 PM
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Hdmi.
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post #4 of 8 Old 10-29-2010, 01:50 PM
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If possible, try using the coax instead of the optical.
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post #5 of 8 Old 10-30-2010, 09:16 AM
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Quote:
Originally Posted by illnastyimpreza View Post

I have gone through 4 sound cards the last couple weeks trying to acheive more than 2 channel sound. The end results have all SUCKED. It seems there really isn't enough multi channel support in the computer world yet.

all the high end audio cards had friggin headphone jack connections. The ones with tosslink are ONLY getting me 2 channels of audio, how the hell do I get more???

This is not a matter of audio card itself. When you play audio record in Windows, it is processed by Windows mixer application. To keep surround intact, you have to bypass mixer. The only reliable way to do it is to use ASIO interface instead of regular Windows one. Your sound card DRIVER and player application have to support ASIO, but only minority do. Usually the best bet is to use VIDEO card with HDMI, that also serves as audio card. Again only FEW do, others just redirect signal from sound card into HDMI.

You probably already see that the goal for manufacturers is DO NOT let you get digital signal out of your PC.
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post #6 of 8 Old 10-31-2010, 07:18 PM
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^ why the hell is this so difficult?

what video cards suport HDMI AUDIO output??? I'm running an 8800GTS.
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post #7 of 8 Old 11-01-2010, 09:13 AM
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Have you tried the little utility "Spdifer"?:

http://ac3filter.net/releases/spdifer_0_3b

Works great...
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post #8 of 8 Old 11-01-2010, 05:09 PM
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Quote:
Originally Posted by illnastyimpreza View Post

^ why the hell is this so difficult?

what video cards suport HDMI AUDIO output??? I'm running an 8800GTS.

As I said FEW have this support. ATI 5750 and 5770 are examples.
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