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睇定啲先啦
http://www.gearslutz.com/board/p ... 3d-dolby-atmos.html
Based on the experience with Atmos I had as a mixer, a conversation I had with Wilfried Van Baelen, and also on Auro 3D demo Chris Jacobson did during the AES in NY, I'd say it is impossible, if both companies remain inflexible on the subject of speaker positioning.
Auro 3D is based on two layers of surround speakers, forming two horizontal "layers" of sound, one of them dealing with the lateral position and the second, higher one, with "height" information. It is very much inspired by real-world human perception of sound position, as we (humans) don't really have the possibility to precisely locate sounds coming from above us. So, Auro 3D creators decided to focus exclusively on "valid zones", omitting the area above us.
It is really clear, even on the first listening of Auro 3D, that the detail in, e.g., Backgrounds or Music is astonishing, especially if some special techniques were used during the recording.
Dolby's Atmos system, on the other hand, introduces a different concept, with a different goal in mind - "objects".
The idea was, if I understood it correctly, to allow for a completely free positioning and movement of sounds - "objects" inside the room, addressing individual speakers. This "object layer" sits on the "bed", a classic 7.1 stem(s), with a possibility to add a stereo "ceiling" information.
It is exactly this vertical information that is different in these two systems, as it is being used for different purposes: Auro 3D uses it to create convincing, detailed ambiences, while Dolby Atmos uses it to move objects around the room.
Consequently, Auro's height layer speakers cannot be used for Atmos' moving objects, and Atmos' ceiling speakers cannot be used for Auro's height layers playback.
Needless to say, I would like to see a combination of two systems - to be able to mix BGs and Music in Auro and move objects in Atmos, but that's not going to happen. Auro is working on adding objects to their system, but those Atmos' ceiling speakers really make a difference when the objects begin to fly around the room.
The big problem is, obviously, on the commercial side: cinema owners have to decide what system will they install, and I don't expect any of them to install both in their rooms, as that would be a very expensive solution. |
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Panasonic DP-UB9000EBK, Shield TV Pro 2019, Apple TV 4K, Acurus Muse 16, PSI Audio A21-M x 5, A17-M x 2, Yamaha HS5 x 2, Arendal 1723 2S x 2, Procella P15A x 2, Epson EH-12000B, Grandview Screen
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發表於 2014-2-11 09:04
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