I agree that the SIDE channels should be used in a 7.1 setup when 5.1 material is played (and the bacsk are silent).
The 7.1 SIDE channels are closer in position to where 5.1 surrounds are supposed to be positioned.
My Xonar/Windows gets this wrong, so I just set Ffdshow to duplicate a 5.1 signals surround channels to both side and back for 7.1 in the mixer (I turn the ffdshow mixer off for true 7.1 sources, which are very rare).
|