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Movie duration

 
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Mike



Joined: 05 May 2008
Posts: 278
Location: Christchurch, New Zealand

PostPosted: Mon Aug 20, 2012 3:09 am    Post subject: Movie duration Reply with quote

I'm using one of the very cool features of DataGraph: animating a simple time series as a line graph, exporting it as a movie with a transparent background, and then overlaying that on an associated video recording in Keynote.

It all works visually, but I really need to get the two files synced. Unfortunately, the exported movie isn't the specified duration. I have it set to export to a movie of duration 23 s, but depending on the settings, it winds up as just under or over 22 s. This means that it doesn't keep in sync with the other video: i.e. they start together, but the DataGraph video ends up finishing about a second early.

I guess I could just work out a fudge factor empirically, but every movie is taking many minutes to export, so it is hard to experiment. Also, I have a number of these to produce, so I'd rather be able to specify the correct duration each time rather than have a number of goes with each one.

Is there an easy fix to this one?
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