Originally Posted by gmore
Thanks for the response IanR and point taken - re-read my statement and my comment of 'vague' not a fair one. Everyone's set-up/ears/etc are going to be different but there are typical 'standards' in various systems as a base line. Dolby offers a lot of info as well as options such as wide-dispersion=face down, angled/focused=face PLL but then statements like "Dolby Atmos enabled speakers produce a slightly more diffuse overhead audio experience that is quite lifelike and, in some cases, may be preferable to the sound that originates from overhead speakers" which is both a wider and directional method? All while I keep reading 'experts' strongly recommending in-ceiling? Far from frustrated here, I enjoy this stuff but I think I'll be a bit bum'd if I end up preferring 'enabled' after all my work (note: no real way to test enabled 1st given my build).
Regarding 5.1.4 vs 7.1.4 with 'older' material, haven't really found anything on this and would love if someone with experience chime in.
I am not a Dolby employee, expert, whatever. But, I can tell you that I spent a bit over 2 years building out my system to the current 7.2.4 configuration that I have. I will put it up against anyone's including most commercial ones.
You want on-ceiling (my preference) or in-ceiling rather than Atmos enabled. The development of the use of Atmos parallels that of surround sound years ago. In the beginning surround was all about ambient sound...rain, wind, crowd noise, etc. That was all that could be done, so the more widely dispersed and diffuse the sound, the more realistic it was.
Then, the ability to steer sound was developed and sound engineers could place sounds within the sound field more accurately. At that point having say, a car pass you from front to back was not reproduced so effectively with diffuse sound. With diffuse sound it might be that a car was somewhere on your right side. With a more direct sound, it paased you not simply somewhere on the right, but from your front right to your rear right.
In the beginning of the use of Atmos effects, a lot of it was ambient sound, and yes, wide dispersions diffuse sound could be reproduced as well, or in some cases, better with Atmos enabled speakers. But, as the sound engineers have begun to figure out what they can do with and have begun to use sound object placement, think sound steering, the ability to place a sound object at a discrete position within your sound field.
So, if there is a plane in the movie that goes from over your head at Top Front Left to over your head at Top Rear Right, where would you want speakers? With AE you would get the affect somewhat, but it would be more at somewhere sort of over my head kind of in the front toward the left and it is passing over me kind of to the right rear. Let's put it this way...do you just want to know that it is up there somewhere, or do,you want to have to duck?
This is getting longish so I will cut it off here. I can tell you of my buildout and why I did things, but it would get even longer. Go with on-celing or in-ceiling with aimable tweeters. Use sealed units to control back reflections, scattering, diffraction, and other issues. Go with 7.1.4 over 5.1.4.
Turn it on and turn it up...and enjoy!