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post #2131 of 2135 Old 07-31-2014, 02:49 PM
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Originally Posted by sdurani View Post
The 5.1 mix on the Blu-ray of Gravity was PCM in the theatres, so the studio could pick any lossless packing technology for the home video release.
Thanks for the explanation. Did I understand correctly we are talking about 3 different mixes?
1. Commercial theater Atmos
2. Commercial theater PCM 5.1
3. Blu-ray DTS 5.1

Curious about number 2: It is neither Dolby or DTS, since there is no need to use either of those lossless packing technologies for commercial theater systems? It's just called PCM 5.1?

Regards, Can
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post #2132 of 2135 Old 07-31-2014, 03:13 PM
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Originally Posted by cannga View Post
Did I understand correctly we are talking about 3 different mixes?
1. Commercial theater Atmos
2. Commercial theater PCM 5.1
3. Blu-ray DTS 5.1
Number 2 and 3 are the same mix (2 is uncompressed, 3 is losslessly packed to take up less room on the Blu-ray). Like if you ripped a CD to FLAC. It's not a different mix, the data is just packed more efficiently to take up less space on your hard drive.
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Originally Posted by cannga View Post
Curious about number 2: It is neither Dolby or DTS, since there is no need to use either of those lossless packing technologies for commercial theater systems? It's just called PCM 5.1?
Correct, commercial cinema hard drives don't have the space restrictions that Blu-ray discs do, so they don't need compression or packing to save storage space. The uncompressed PCM tracks are typically stored as .wav files.

Sanjay
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post #2133 of 2135 Old 08-09-2014, 08:24 AM
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Quote:
Originally Posted by sdurani View Post
Number 2 and 3 are the same mix (2 is uncompressed, 3 is losslessly packed to take up less room on the Blu-ray). Like if you ripped a CD to FLAC. It's not a different mix, the data is just packed more efficiently to take up less space on your hard drive. Correct, commercial cinema hard drives don't have the space restrictions that Blu-ray discs do, so they don't need compression or packing to save storage space. The uncompressed PCM tracks are typically stored as .wav files.


Thanks Sanjay. Do you happen to know who makes the Atmos decoder preamp/processor for commercial theaters? Just curious.

Regards, Can
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post #2134 of 2135 Old 08-09-2014, 08:33 AM
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Originally Posted by cannga View Post
Do you happen to know who makes the Atmos decoder preamp/processor for commercial theaters?
Dolby: http://www.dolby.com/us/en/professio...cts/cp850.html

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post #2135 of 2135 Old 08-09-2014, 08:35 AM
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What's the range for speaker trim levels on the Cinema Rhapsody? Denon has +/-12dB.
How's the sound in movies if compare to those Japanese brand?
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