Realtek HD Audio 5.1 Optical Input (from Xbox 360)

Posted by Shevek on Super User See other posts from Super User or by Shevek
Published on 2010-04-19T18:54:27Z Indexed on 2010/04/19 19:04 UTC
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I'm trying to connect up my Xbox 360 digital audio to my 5.1 speakers via my PC (my LCD has dual input, DVI for the PC, D-SUB for the Xbox).

The motherboard has a Realtek ALC888 chipset and I have a 5.1 speaker system connected via 3 x 3.5mm jacks (FR/FL, RR/RL, C/LFE) and I get full 5.1 output from the PC.

I have connected the optical audio cable from the Xbox to the Optical In on the motherboard's backplate.

With the Xbox in Digital Stereo mode I get 2 channel audio from the Xbox, through the PC, to the speakers.

With the Xbox in Dolby Digital 5.1 mode I get no sound at all.

I have the latest Realtek drivers installed in Win 7 32-bit.

Questions:

  1. Is it possible to use the full 5.1 DD from the Xbox?

  2. If so, am I missing some option(s) in the Realtek setup?

  3. Do I need some other piece of software to do this? (AC3Filter or FFDShow perhaps)

Many thanks

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