Sorry for my delayed answering, but I didn't have enough time this WE.
Originally Posted by chi_guy50
Salut d'Atlanta! Je ne suis pas Keith, mais je voulais vous remercier de ma part pour l'hyperlien ci-dessus. Et j'espère que vous passez vous-même un bon weekend!
That's a very interesting write-up on several fronts--regarding your highly favorable impression of an Atmos demo under decidedly sub-par acoustical conditions, your (subjective) thoughts on the viability and future development of HT Atmos, and your ruminations on speaker placement presumably adequate for a variety of processing formats (Atmos/DSX/NEO:X/DTS-UHD).
You made a number of comments about DTS-UHD that drew my attention. Inter alia, you stated your conviction that DTS-UHD, when it emerges, will be able to process Dolby Atmos-encoded recordings. You also said elsewhere (I can't recall the exact post) that the Marantz AV8802 will "very probably" feature DTS-UHD processing (last I heard on this score was that it "might" be added as a FW update in 2015 on certain D&M models). Could you perhaps elaborate on your basis for these statements and also share your thoughts on how you feel the possibility of DTS-UHD should influence our decision to purchase one of these first-generation Atmos AVR's?
Bien amicalement, Jeff
Now before anything else let me reproduce the sentence that preceded all the analysis that I wrote in the above link :
"Alors merci de bien vouloir garder en mémoire que tout ce qui va suivre correspond à ma propre analyse personnelle et que ceci n'engage que moi."
(meaning : Now please bear in mind that that will follow corresponds to my own analysis and that it only engages myself.) and being a pure amateur - but audio/video being a real Passion (among several others
) -, I try to keep my own understanding in this AV field the best I can, as to be able to anticipate the technological evolutions and rightly include them into our own (today 11.2) constantly evolving environment. The reason I'm not "innocent" in this matter, but definitively not an "insider"... linked with NDAs.
Now my opinion
is that what summarizes best the Dolby Atmos concept
in a HT environment is the attached "Dolby Atmos speakers configuration scheme"
. Does it officially represent Dolby's requirements concerning speakers possible positionings in HTs? We will obviously have to wait @ Aug 15th for the official Dolby announcement prior to IFA and Cedia editions.
But it still remains that what can be seen in this leaked scheme is that there are angles overlap between speakers designated as Height speakers (1 30° -> 45°) and Top speakers (2 30° -> 55°). What can (but "could
" may be more appropriate...
) this indicate?
is that in the case of a Dolby Atmos processor in a x.1.4 speakers configuration, if the speakers are declared as Tops and if they are physically located between 30° -> 45°, it will be equally possible to adequately use them either as Heights - in DSX (2?) and DTS Neo X contexts - or as Tops - in Dolby Atmos contexts -. All which means (IMHO
) that what seems
to be important in the "overhead" Dolby Atmos proposed reproduction, are not speakers locations - on wall or on/in ceiling - but the angle versus a specific reference
that those "overhead" speakers create with the ears.
So if the "reference" speakers are at ear level, it seems
that creating a 30° -> 45° angle difference to this reference, is adequate.
And to illustrate this let's have a look at the bellow attached "enceintes au plafond" example (initially posted here
), where the "reference" speakers are located very high above ear level. But where an Dolby Atmos effect will still be probably
perceived as the Top speakers are located on the ceiling, creating the mentioned angle difference. And this is precisely what happens in Cinemas, and why in Cinemas including Top speakers in the ceiling is un-avoidable...
But does this mean that in our HT contexts, we all need to (re)place our speakers on/in the ceiling? Obviously (IMHO), no! And which also means (IMHO) that this new Dolby Atmos concept can still perfectly co-exist with the previous Audyssey DSX and DTS Neo X processings.
Now concerning my DTS-UHD assumption:
it is now known the the Dolby Atmos concept also includes a specific processing which "batpig" has called here on AVS : Dolby Surround if my memory is correct. A specific Dolby processing which will adequately "render" 5.1,(6.1) and 7.1 (and IMHO also 2.0...) recordings, on the new from 5.1.2 to 7.1.4 or 9.1.2 Dolby Atmos configurations. And the later 9.1.2 Atmos processing being probably IMHO the most interesting, as far as future developments, evolutions into 13.x/15.x processings are concerned.
But then if we look a bit closer into what is the real difference of this new processing compared to what we used to have with DPL IIz previously in 9.1, and/or isn't this new Dolby Surround processing just a slight evolution of the DPL IIz diving it a DPL IIz² 11.1 capacity?
An 11.1 capacity that the DTS Neo X 11 processing already has... And a DTS Neo X processing that (as initially advertised) has been built from scratch, with the capacity to possibly
evolve, into processing as many channels as "needed"... IMHO (again) all this indicates not an opposition, but only a real world DTS-Dolby compatibility, even in the new Dolby Atmos concept context. But a Dolby Atmos context, which also introduces Atmos recordings.
Though my assumption that DTS, to adapt itself to this new reality should at least
make an evolution of their DTS Neo X processing as to make it compatible with Atmos. So IMHO the new DTS-UHD must
inevitably be Atmos compatible, the same way Neo X is compatible with DD & Dolby True HD processings.
But a DTS-UHD as announced here in Jan 2014
, that is supposed to be far more powerful through its' Cirrus logic dedicated specific chip. Now nobody has claimed its' presence in the Onkyo xx3x series. Will it be present in the future D&M products and singularly the Marantz 8802? I
Amicalement et bonne semaine ou vacances,