Le 2021-05-23 à 16 h 50, Fons Adriaensen a écrit :
Atmos can use any mix of (fixed position) channels and (moving) objects.
So it can be as simple as 5.0 or even stereo with a few objects for effects.
In terms of required channel count (for distribution) it's actually a very
effective format, for almost all content it will require less channels than
high order Ambisonics.
Because Dolby Atmos is not free (as in speech), some people (like me)
cannot experience it (and are not feeling like missing something); age
and demographics is also a factor: target audiences are gamers, have the
latest gadgets, phones and cars, enjoy new commercial films, television,
sport, Netflix, etc...
The official consumer propaganda is not a good explanation. Wikipedia
helps a bit. For example, is using stereo (for some ambiance) with
objects and DSP more effective than 3rd order Ambisonics? Is the 5.1
"Dolby Atmos" format like a generic 5.1 format, but with extra objects?
When all we read it "better", "24bit", "object based" and other
buzzwords, it's very difficult to understand.
Dolby Atmos looks like it's using a mix of available audio
spatialization techniques, and a set of decoding techniques for a range
of target devices and speaker layouts, made by and for a national
industry (no need to mention which one).
Marc
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