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Why is 4K XAVC so choppy with a Decklink Extreme 3D card?

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Peter Corbett
Why is 4K XAVC so choppy with a Decklink Extreme 3D card?
on Jun 14, 2015 at 2:31:21 am

I'm doing a lot more 4K now with my Sony F5. But whenever I try to work with 4K 25P (and off-speed), the playback via SDI on the Decklink is terrible. It stutters and sometimes stops altogether. I'm using XAVC 4K clips scaled in a 1080 timeline. This feels like a hardware limitation. Is the RT downscaling too much for the Decklink?

My system is;
Adobe CC 2014
Mac Pro 2012
24gb RAM
16gb SAS RAID-10 - 30% full
GTX680 2gb
Decklink Extreme 3D

Does anyone else have 4K issues on 1080 Premiere timelines with their Decklink?

Peter Corbett
Powerhouse Productions
http://www.php.com.au


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