I am getting video and/or audio freezes during PTT; running FCP 7, Dolce 8 TB raid array, 32 GB RAM, dual 2.66 6-core proc. Somethime these freezes are repeatable, occuring at the same place on multiple attempts to play. Others seem random and occur at various places on the timeline, sometimes when video is only one layer deep. I have 8 channels of audio, but did mixdown prior to PTT.
What codec is the video?
What are you using to connect the deck to the computer?
What format are you recording on tape?
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Editing using Apple ProRes 422; deck connection via AJA Kona 3G PCI card; printing to tape using HD-SDI with embedded auio onto a Panasonic DVC Pro HD tape deck (don't remember the specific model) using RS422 deck control; also tried just playing back the edited piece and crash recording deck and it made no difference; and turning OFF external video completely still yielded freezes on the canvas monitor.
Is this a standard video image size and framerate project? Nothing wonky? No up or down rez in the playout?
I'd call AJA support and see what they say.
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No odd frame rates/sizes. All standard 720p footage (GoPro stuff had to be transcoded, using 3rd party software). My gut feeling is a problem with the disk array, but AJA card could be culprit. That's what is making this nearly impossible to track down--AJA tech guy said is was probably software; disk array folks say it is the PCI card.
If so, time to start isolating elements.
Move the file off of the RAID, disconnect the RAID and try to PTT using another internal drive. (I'm assuming you have a MacPro if you are running a Kona.)
Does it work?
If so, the RAID may be the issue.
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Video Freeze during PBack
