SPDIF specification

[anders@dac.se]

I use a Mini-itx M10000-n as a HTPC.
And i have a problem with the SPDIF out. I cant get any AC3 sound out from my AC3 Amp. If i hook up a Pioneer stand alone DVD to the AMP i get sound (using the same DVD disc). I've connected a osciloscope to the DVD and to the mini-itx. On the DVD player i get a signal swing of +/- 0.2V (differential) and if i connect it to the Mini-itx i get a similar looking signal but it only ranges from 0 to +0.2V (single ended). So maybe mini-itx isnt following the correct SPDIF specefactions?
Anyway whats the specifaction for the Spdif signal?

/Anders

[KpeX]

What filter are you using for AC3 playback? Do you get any sound at all?

[anders@dac.se]

Im using PowerDVD for DVD and AC3Filter 0.70b for media files.
I get no sound at all...

My other PC using the same filters get sound (and the same osciloscope curve as the Stand Alone DVD)

/anders