On Wed, May 21, 2008 at 2:52 PM, Bob Sully <<a href="mailto:rcs@malibyte.net">rcs@malibyte.net</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">David Linville wrote:<br>> Change Max Audio Channels to Stereo when using spdif. I think the 5.1 is<br>
> only for analog.<br><br></div>When I do this, I do get "real" stereo from 2ch sources; I no longer get<br>
"Pro Logic" upmixed sound. And now, all of my DD5.1 shows are downmixed<br>
to stereo. Yeah, I get sound, but only 2-channel. That's better than no<br>
sound at all, but....!<br>
<div class="Ih2E3d"></div></blockquote><div><br>If it's truly passing through AC3 or DTS then any down mixing must be happening on the receiver. Can you tell if the receiver is getting an AC3 signal (mine has an indicator even if it's set to process the sound)?<br>
<br>Otherwise it's not passing AC3 through properly. I'd try changing the regular output device to something non-spdif to make sure that it is using the passthrough device. to eliminate this possibility.<br><br>Cheers,<br>
Steve<br><br></div></div>