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Topic: Dolby CP850 bypass function
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Jim Cassedy
Phenomenal Film Handler
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Posts: 1661
From: San Francisco, CA
Registered: Dec 2006
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posted 02-13-2016 04:27 PM
I've met a couple of the people at Dolby who were on the CP850 design team and have whined to them on several occasions about the lack of any type of bypass or the ability to have complete flexibility in re-assigning channels in an emergency, after I had a similar situation last fall when a center channel amp completely failed. They listened politely, and that was that. (And I manage to bring it up again every time I see them)
I had a spare 'repeating coil' type transformer (one input, 2 outputs) and was able to run the center channel audio through that and split it to the left & right screen channels.
Fortunately, the theater in question had an old, long, narrow, "shooting gallery" type of auditorium, with mediocre acoustics, so unless you were sitting in the front several rows, most people wouldn't notice the lack of center channel.
Was it an 'ideal' fix- - no. But it worked well enough to get them through a busy weekend, with no complaints, until a new amp could be installed Monday.
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 02-16-2016 05:32 PM
We smaller cinema operators love the idea of having bypass, fallback, etc, for obvious reasons.
But when I think about it, you are right in that ATMOS is such a high-profile system and only used in premium auditoriums. I wouldn't want to pay a surcharge/premium for such a system when it is comstricted by a technical fault. And every cinema with an ATMOS system should have the resources to have these systems properly maintained.
If there was an automated masking function, there would only be a red light somewhere, that could be missed or ignored for days, weeks, months...
A CP850 should always have an automated email alert sent to Dolby NOC in case of an error, with Dolby mandating a repair within a specified deadline, otherwise Dolby would pull out out the equipment...
- Carsten
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