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Final Cut Pro causing digital artifacts on output
Has anybody had this problem before?
I edit a sequence and then render, everything is looking fine.
Then I output to tape and all of the sudden I get several digital hits.
I can go back on the timeline and roll over the sequence with the original source footage and that fixes it.
But sometimes new hits will show up elsewhere. The Final Cut software seems to be causing these hits as they are nowhere to be found on the source material.
Some of the hits appear in graphics while others appear in video.
I was wondering if it was some problem in the way Final Cut was compressing the video???
Some specs:
I am using Final Cut Studio 2 and have a AJA Kona card connecting to a Sony DVW-A500 Digibeta.
Running an Intel Quad-Core Mac ver 10.5.8
I’m looking at just re-installing Final Cut but trying to avoid it if possible.
Trevor Hands
“Anything that can possibly go wrong, does.” — Murphy’s Law
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7 Replies
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what are you using for sync?
Non-linear: all the time and nothing but.
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When was the last time you cleaned the heads on the deck?
Arnie
Post production is not an afterthought!
https://www.arniepix.com/ -
I don’t think it’s a software issue, I would follow the aforementioned suggestions and also re-seat your Kona card and re-cable the Kona connections. I’ve had similar problems in the past and I fixed it by re-seating the Kona card and re-attaching the cables.
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what do the artefacts look like? i worked on a mac pro that had a faulty (seriously overheating) radeon graphics card – can’t remember the model sorry – anyway, i got horizontal digital distortion across renders seemingly at random –
i managed to get around this temporarily by installing some fan control software and turning up the fans to cool down the card…
jjj
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I apologize, my last post may have been misleading…
I know it is a software issue because I am getting these hits even BEFORE I output to tape.
But as far as hardware is concerned, I run a cleaner tape for 5 seconds once every week. I use a Blackburst for sync.
I can put a cut in my timeline one frame after the hit and roll my source footage over and that always fixes the problem.
But then I go to output to tape and the places that I’ve fixed are fine but then I’ve got the same kind of hits, this time in new places.
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While I’m editing, everything is fine. I seem to be running into this issue once I bounce my audio tracks to four and video to one as I get ready to import. I render and do a check once it is done rendering, before it goes to tape. And it is during this stage in the process that I’m having problems.
Joe – they are horizontal lines, some short some longer…I hadn’t thought about my card overheating. I have an air conditioner unit in the room, so it is kept at a very reasonable temperature. Maybe it just needs a little extra help or something…I don’t know.
Trevor Hands
“Anything that can possibly go wrong, does.” — Murphy’s Law
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Trevor,
Without having access to your project and system, all is guessing.
I would try exporting a Self-contained movie and bringing it back to FC for tape printing.
rafael
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