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Missing frames when recording to Quicktime with Decklink HD

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Dirk DeJonghe
Missing frames when recording to Quicktime with Decklink HD
on Aug 17, 2011 at 2:43:22 pm

I am recording SDI coming from telecine. On several occasions I have had missing frames, about 24-30 frames long in the middle of a sequence; no warning given by Decklink.
I recorded SD PAL to Quicktime ProresHQ 422. The RAID0 disks (2ea Constellation 2TB) were recently changed but make no difference.

The clip should be continuous, usually about 20-30 minutes. Since there is burned-in timecode, I check if the timecode holds from beginning to end. If there is a drop I have to start a new recording; capturing without device control using Media Express latest version.

http://www.postproduction.be


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