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Why won't the audio sycn at 25fps?

I've shot some video on my DSLR (Canon 5dm2) and recorded audio separately on Zoom H4n at 44.1khz. If I shoot the video at 24fps is syncs perfectly using the auto sync function in the event's window. However, if I shoot the video at 25fps it won't sync.

Posted on Jun 26, 2011 3:57 PM

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21 replies

Jul 5, 2011 3:28 AM in response to f8photography

I just found out that I can change an incorrect framerate of a synchronized clip by replacing the content of the clip:


Double click the synchronized clip in the Event browser, it opens in the Timeline

Remove the files from the Timeline.

First add the video and then audio manually by dragging it from the Event browser to the Timeline.

Sync the files manual.


(To check the framerate

Select the clip in the Event browser, open the Inspector Info tab.)

Jul 5, 2011 5:48 AM in response to f8photography

f8photography wrote:


sync the files manually? we know that, thats exactly what we are complaining about! The fact that there is a feature called 'synchronise clips' that doesnt synchronise the 25fps footage with the audio...of course can do manually, that defeats the object.


Yeah it *****. But for us me it is a better option than recompressing the framerate to 23,98 fps.

Why won't the audio sycn at 25fps?

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