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This topic comprises 3 pages: 1 2 3
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Author
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Topic: You Were Never Really Here 7.1 files only
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 04-20-2018 10:31 AM
Most come in 5.1 only. I'd say maybe 10-20% are 7.1 currently. There is a slight tendency towards more 7.1. I think that is because ATMOS releases can be downmixed into 5.1 and 7.1 pretty easily, so, the more ATMOS, the more 7.1 releases.
If you play more mainstream than arthouse, you may get some more 7.1 DCPs.
I started a list with most common format attributes (Scope/Flat, 2k/4k, 5.1/7.1), but only from the beginning of this year.
Typically, you register your screen to be 7.1 enabled, then you receive 5.1 and 7.1 KDMs for every 7.1 feature, and it's up to you which version you play. However, if, as in this case the TE, you only get a 7.1 dcp, you have no choice to play a 5.1 version.
The server causes no issues if you play a 7.1 DCP with a 7.1 KDM on a 5.1-only audio system. All your 5.1 speakers will have sound. It's just that the content on the back surround channels of the DCP is missing in the playout.
- Carsten
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Frank Angel
Film God
Posts: 5305
From: Brooklyn NY USA
Registered: Dec 1999
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posted 04-21-2018 02:45 PM
Wouldn't the ATMOS processor know to just use the 7.1 channels? In fact, wouldn't it know to use the 5.1 channels as well if that were all that were available to it? Isn't it always looking to use whatever channel/speaker configuration is on the other end of the system...64, 32, 10, even 7? And I assume it also knows what speakers are what type, i.e., bi-amped, full range, subbass, and adjusts what it sends to them as well, no?
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Marcel Birgelen
Film God
Posts: 3357
From: Maastricht, Limburg, Netherlands
Registered: Feb 2012
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posted 04-21-2018 04:57 PM
quote: Michael Brown
The weird thing i've seen is a film come out in ATMOS and 5.1 - but no 7.1. We just had this with Jumanji 2 - there was an ATMOS, but then the regular version was only 5.1. Would have thought that if an ATMOS mix exists then there should be a 7.1 downmix avalible??
Yes, this was just laziness or sloppiness. It's always possible to extract a 7.1 downmix from a proper ATMOS mix.
quote: Frank Angel
Wouldn't the ATMOS processor know to just use the 7.1 channels? In fact, wouldn't it know to use the 5.1 channels as well if that were all that were available to it? Isn't it always looking to use whatever channel/speaker configuration is on the other end of the system...64, 32, 10, even 7? And I assume it also knows what speakers are what type, i.e., bi-amped, full range, subbass, and adjusts what it sends to them as well, no?
Yes, in a proper ATMOS setup you tell the processor where each speaker is located and how it is configured. It uses those variables when it maps the sound across the speaker array.
Although Dolby has some minimum configuration requirements for ATMOS equipped theaters, ATMOS could theoretically operate with just a single speaker. ![[Wink]](wink.gif)
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