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propower

macrumors 6502a
Original poster
Jul 23, 2010
731
126
I am trying out recording video in my iphone 6s (instead of my old Zoom Camera) while also recording audio using Studio One (like LogicProX) for use in music videos. The problem is my iphone 6s records in Variable Frame Rate regardless of quality. After getting the audio and video start points right in iMovie - my 4 minute video ends up noticeably out of sync with the audio by the end. The solution is to convert the iphone video to Constant Frame Rate (29.97). I do this in Handbrake but it takes almost the exact length of the video to do the task - ~4 min processing to convert a 4 minute video.

Has anyone ever done this with the i7 iMac (2015 or 2017)? Is it noticeable quicker?
 
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