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Video lag on client monitor

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Ben Murphy
Video lag on client monitor
on Jul 15, 2010 at 6:59:14 pm

Hi Everyone,

On a recent edit, there was a noticeable delay (probably 10 frames) on the video that played on the broadcast monitor (Flanders Scientific). Whenever I started playback from the first frame of the video, everything synced fine, but if I started from any moment before that, the lag occurred.

Any thoughts?

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Sergio Villarmarzo
Re: Video lag on the client monitor
on Jul 15, 2010 at 7:27:18 pm

Just an idea...

Also put the reference (black burst) to monitor and close the output of the reference monitor with a 75 ohm resistor.



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Jeremy Garchow
Re: Video lag on client monitor
on Jul 15, 2010 at 8:14:41 pm

FIll your gaps with a slug.

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walter biscardi
Re: Video lag on client monitor
on Jul 24, 2010 at 1:50:18 pm

In addition to the other suggestions, note that your playback offset should probably be set to 1 or 2.

There is a slight delay in any LCD processing your video so you have to offset for that in FCP. I believe we have the offset in all our rooms set to 2 and we run all FSI monitors. The 17" might be a 1 frame offset, but I'll have to check on Monday when I'm back in the shop.

I discussed this at length with Bram and Dan at Flanders and if you really want to have all the technical explanation for the delay in the signal, feel free to call them. They are great guys.

Walter Biscardi, Jr.
Editor, Colorist, Director, Writer, Consultant, Author, Chef.
HD Post and Production
Biscardi Creative Media

"Foul Water, Fiery Serpent" featuring Sigourney Weaver coming soon.

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