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DME Processing delay?

3 replies [Last post]
Thu, 12/14/2006 - 18:18
Unger
User offline. Last seen 13 years 32 weeks ago. Offline
Joined: 2 Feb 2006

Anybody experience any kind of delay when running video through the DME and then try to match the source on line ei....2 box squeeze backs etc....

Thanks

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Thu, 12/14/2006 - 19:19
#1
Bob Ennis
User offline. Last seen 5 years 14 weeks ago. Offline
Joined: 24 Aug 2005
If you're talking about a 1-frame delay between live video & the same video passed through a DME (DVE), then you're looking at something that is inheirent in all DVE's and has always been there in previous switcher/DVE combinations. In order to process the pixels for manipulation, DVE's require about 1 field of processing time. In order to fit in with the rest of the scanning process, DVE's add an additional field of time, equaling a total of 1 frame of delay. As far as I know, you can't get rid of this DVE video delay without also having to delay the rest of the (non-DVE'd) switcher - which is how I think that the Kahuna solves this problem. Now, if you're seeing some sort of motion decay through the DME, then that may be an errant Motion Decay ON setting in the DME, possibly on page 4153 (motion decay).

Bob Ennis

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Thu, 12/14/2006 - 18:47
#2
Unger
User offline. Last seen 13 years 32 weeks ago. Offline
Joined: 2 Feb 2006
Its the 8k's internal DME, all traj. seemed to be normaled, but There is some sort of delay with any moving footage...its probably somewhere in the XYZ's I'll check again
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Thu, 12/14/2006 - 18:24
#3
Mike Cumbo
User offline. Last seen 3 years 23 weeks ago. Offline
Joined: 18 Aug 2005
Which DME??? The older 3k/7k or the newer 8k? Internal or external? Using the 8000's internal DME I haven't noticed anything serious. In fact, it is rather seamless.
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