Originally Posted by daimler2015
Are your front DE speakers set up using DE option during the speaker set up in the 160s menu?
For the longest time MC advised me to use LTM/ RTM in lieu of the DE option during initial set up. This allowed those speakers to play not matter what mode was used.
When I was advised that the DE option now worked, I rearranged those XLR connections, redid speaker set up menu, and reran RP. Afterwards, those L/R DE speakers only turned on with Atmos and Dolby Upmixer. I was told by some it was due to Dolby/dts conflicts, however dts says it should work since they claim to have the most user friendly set up.
My short answer is yes, I had two pairs configured as DE.
Please correct me if I'm mistaken about any of the following, but this is what I understand or observe. Sorry, I'm trying to be very specific here in the details.
If you have only a front pair of DE speakers, then they are supplied sounds for representing a middle overhead pair. However, additionally, the Dolby Enabled setting employs some signal processing to make the sound appear to come from above.
In contrast, if you have two pairs of DE speakers, then they receive sounds for a front overhead pair and a rear overhead pair (both with signal processing applied).
However, when speakers are configured as physically overhead speakers, the processor does not apply extra signal processing, since they are physically located above. So the sound is not quite the same as if they were configured as DE pairs.
If I specify two pairs as physically overhead, then I hear respectively sound from all four speakers (front and rear overhead pairs).
If I specify one pair as DE and the other is overhead, then I get appropriate sounds corresponding to middle overhead pair and rear overhead pair.
If I specify front pairs as DE and rear pairs as DE, I get appropriate sounds for a front overhead pair, but I hear no sound from the rear overhead pair.
If we only consider only the "no post processing mode" using Atmos content, for the sake of simplifying this discussion, this used to work properly for Atmos content in v3.0.9, but not in v3.6.6. I used to get both pairs. Instead what I hear now, corresponds to front overhead and no rear overhead. I'm trying to say that the sound for front overhead pair sounds different from middle overhead pair, as would have been the case with only one (front) pair of DE speakers specified.
I'm trying describe what I observe in a way that is independent of the audio format compatibility, the format compatibility is like another angle that maybe just adds complexity to the discussion.