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Interlacing problems

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Andrew Barratt
Interlacing problems
on Dec 19, 2012 at 10:37:32 pm

I wonder if you anyone can help me.
I've recently digitized some old vhs footage using a piece of kit called VideoGlide Capture. When i play this captured video via quicktime it is fine and if i burn it via idvd its fine. But i want to edit it and as soon as fcp sniffs it, it throws up the old interlace lines everywhere whenever there's panning or other motions. It's terrible to view. I understand that computer monitors aren't too good at handling interlaced footage so i've exported and burnt it and i'm getting the same issue at playback on my TV. I've tried all the different filters and checking the de-interlace source video option at export and still, it haunts me. Compressor hasn't helped either.
Can anyone shed any light on what is causing this problem or give me a possible solution?
Many thanks in advance.


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jerry wise
Re: Interlacing problems
on Dec 19, 2012 at 11:23:10 pm

if it's vhs it's probably lower field. change it on the clip and it will look better. view footage on an tube type monitor and it will look good.


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Neil Patience
Re: Interlacing problems
on Dec 19, 2012 at 11:58:42 pm

I could be wrong but I believe VHS is actually upper field first, at least it is in PAL however Jerry's suggestion still holds true, try changing the field order.
I had a quick look at VideoGlide as I was not familiar with it and it seems to output a 640x480 frame size - so that is going to be expanded a bit in a normal SD timeline which may also be adding to issues.

From Spec

- 640 x 480, 29.97 frames per second NTSC video capture.
- 640 x 480, 25 frames per second PAL/SECAM video capture.

You might get better results from something like this

http://www.grassvalley.com/products/advc110

best wishes
Neil
http://www.patience.tv


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