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sync separate audio/video
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Topic: sync separate audio/video
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andhow04
PS Silver Member
Sr. Member
Posts: 701
sync separate audio/video
on: June 28, 2020, 04:07:26 AM
i have a ipad pro with nice camera, but sound not good for piano recording.
i have zoom h5 which makes a nice recording sound..
how do i sync them together> i import both video and audio into imovie, do all the clapping bullsh!t, but after a minute or two it will just start to get off. there seems to be no way to drag the audio in smaller intervals than like half a second or something. you can't position it with precision...
tried changing sample rate of audio to 48 khz but did nothing
dont' tell me to buy a new microphone for the ipad pro!!!
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perfect_pitch
PS Silver Member
Sr. Member
Posts: 9351
Re: sync separate audio/video
Reply #1 on: June 28, 2020, 04:32:58 AM
Unfortunately I know nothing about iMovie. I use Sony Vegas Movie Studio for all my videos. Can't complain about it because it is PRETTY damn powerful and lets me do what I want, when I want.
You might have to get better software unfortunately.
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quantum
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Posts: 6272
Re: sync separate audio/video
Reply #2 on: July 25, 2020, 07:35:13 AM
Might be an issue with the codec/container. Some are better suited for work in editing, for archival video, for online distribution, etc. Try changing the codec/container on your recording devices. For your audio recording, set the H5 to record in uncompressed WAV.
I'd also recommend using a different NLE. These kind of problems can be difficult to solve when using an editor designed for general consumers.
Vegas is good, as perfect_pitch has noted.
For free, look at Kdenlive (open source). There is also a free version of DaVinci Resolve.
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ronde_des_sylphes
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Posts: 2960
Re: sync separate audio/video
Reply #3 on: July 25, 2020, 05:12:41 PM
The first thing that springs to mind is: is the length of the audio performance the same as the length of the video performance? This might seem like a stupid question, but perhaps the captured video has been dropping frames.
If you can only align the start point in terms of 0.5s units, perhaps work out how far the discrepancy is and add the appropriate duration of silence/ ambient noise to the start of the audio file within a free editor such as Audacity.
Agreed with the other posters, Vegas is good, and you can do things like stretch the duration of the video or segments within it to do a rough compensation for dropped frames if that is what the problem is.
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