Originally Posted by CBdicX
Hi MagnumX, thanks for your great info :-)
If i understand you correct, when i do a 5.2.5 (with VOG) setup i can have Auro playing on Atmos and DTSX files, and both will play 5.2.4 with VOG ?
The VOG channel only works with Auro-3D (and DTS:X *IF* you have a total of less than 11-channels in use). It does not work with Dolby Atmos at all. I suggested a way to "extract" such a channel, but it's cumbersome because you have to first extract
"top middle" with another set of Dolby Pro Logic processors. You could actually just use those two speakers placed closer together to act as top surround for that matter. But if you're going with a Dolby layout (front/rear height), top middle should be in line with the front/rear height channels if possible. I have mine on the sides, but I let some sound "leak" (via distance setting) to the mains as well which pulls the phantom image over far enough that they sound more or less in line (my room is also narrow at only 12 feet wide).
I changed my setup a few days ago, now i have on front wall the Front Height above the Front speakers, and on the back wall the Surround speaker and above them the Height Rear speakers.
I could do a Auro setup and set them as Side Surround with Side Height.
Instead of having them on the side, they are behind me, beside me is not possible.
For VOG I need to be creative, I can not have speakers on my concrete ceiling.
What I can do is mount them behind my 65 inch Oled screen, and bounce the VOG signals from the front wall to the ceiling, to the MLP.
I had this before on a 7.2.2 setup and it worked great, could not tell that the speakers were behind the screen, it sounded above me.
Not ideal, but its working.
All the immersive formats will phantom image overhead if you have front and back speakers in use including Auro-3D. Like with all stereo panning, though it will pull a bit towards the speakers you're sitting closer to (but then that typically still appears above your head more or less). Thus, you don't actually need a VOG for the main listening seats in line with the center of the screen. It's more useful for off-center seats as the overheads will pull to the nearest speakers when you sit off center. I'm not sure how well a "bounce" VOG would work anyway, but I guess you could try it with a 5.1.5 setup for DTS:X and Auro-3D at least.
But will this work, run Atmos and DTSX files on Auro with VOG in 5.2.5 ?
(my MLP is only 2 seats just before the middle of the room, no more....)
It should work for Auro-3D and DTS:X, but Atmos won't use the actual VOG channel. If you really want a middle top middle channel for Atmos, you'd have to extract (via Pro Logic center outputs on two processors) "top middle" instead with an 11-channel receiver. Since you cannot mount speakers there anyway, I'd just go without. You can try using a bounce for the VOG with Auro and X sources, but it only becomes active for direct overhead sounds and the bounce may not work as well as you expect and might pull it forward instead. But you can try it.
It's a shame Atmos won't use it, really as that could more or less make Atmos fully compatible with Auro 10.1 setups. It seems the two companies don't want to cooperate whatsoever (and Dolby has nothing to lose by refusing really as they control the market right now more or less). DTS is clearly smarter than Auro Technologies and went with being compatible with either setup regardless (knowing full well the small speaker position differences don't kill the effects enough to warrant refusing to use the speaker locations and thus risk losing support whichever way things went, although it was fairly obvious Atmos was going to win over Auro-3D no matter what, but I had at least hoped Auro would carve out some support enough to have some choices, but they seem pretty dead now. Unless China or something brings in a lot of money and more personnel, I doubt things will change much. They used to at least have decent cinema support, but I haven't seen anything in over a year at the cinema in Auro-3D around here and some theaters are now converting to DTS:X as it's cheaper than moving to Atmos specs from Auro-3D locations and DTS has no problem getting major release titles in X for the cinema as they still have major connections with all the studios for BD use, etc.) Really, with streaming bringing options of multiple languages, etc. at the push of a button, you'd think you could also choose Atmos or X (and possibly Auro as well) at the push of a button...but nope. We're held hostage to the whims of the studios....