Well, I finally figured

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May 29, 2011 at 8:18 am #4113
gmcintire

    Well, I finally figured something out.

    If I tell the Win7 Sound control panel to output “stereo” instead of 7.1, it allows the Yamaha’s Dolby PLIIx Surround decoder to kick in and finally I get the “good 5.1” sound (over HDMI) from netflix and VUDU that I could only get with the USB/SPDIF card before.

    So, I have solved my original problem, but still need education.

    Is this what you call “upconverted” sound?

    It certainly sounds far better than any sound programs I’ve heard operating on a true stereo source. So, I think there is more coming down these two channels than simple stereo.

    When I read this wiki, http://en.wikipedia.org/wiki/Dolby_Pro_Logic it sounds to me like this is true surround sound.

    Upconverted or not, I promise you will like netflix and VUDU much more in this mode.

    Please help me understand this better.