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Jon Amerikaner

Sync sound 24p to 30p

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What problems, if any, will I run into if I shoot (D5) at 1080 24p and convert to 30p (for USA DVD) with sync sound? And how do I correct it? Audio interview. Premiere editing.



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Why do you want to convert 24p to 30p?

I think the easiest way to do this would be to shoot 60i and deinterlace (with pulldown) to 29.97.


To answer your question, you will need to speed up your audio 4%.


So in Premiere, simply unlink the ganged video/audio (R-click > Unlink), R-click on the audio > choose speed/duration? (I'm not looking at it now) and type in 104%.

If you haven't moved the tracks they still should be in sync.


Another issue you may run into is the audio recording. Are you recording with an external device, or using the D5's audio track.


If I were you, I would import all the footage and audio, edit at 24p native, THEN when I was all ready to go, let AME (Adobe Media Encoder) handle the conversion to whatever format you want. If you have Production Suite or Master Collection, you also have the option to just sending it directly from Premiere to Encore for burning.


Hope that helps.

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