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Problem with Sony XAVC files

Participant ,
Apr 24, 2023 Apr 24, 2023

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Hi I have problem with editing Sony FX3 files.
I want to make proxy files and editing with them, but I can't make proxy with Media Encoder, because it doesn't support mov with h264 codec.
So I must make with different program and there is the problem. When I convert-make proxy, audio in resulting file is with 1-2 frame delay.So when I finish editing and watch with original file I was very surprise that audio cuts and keyframe is not in the right place and some parts of word are cut.
I have PC and MAC and the problem is on both system.
Software for proxy that I try on MAC is: Final Cut, Resolve, Shutter encoder
Software for proxy that I try on PC is: Edius, Resolve, Shutter encoder

Then I start to compare audio waveform of Source-Original(not proxy) video file on every program, and then I see that on Final Cut, Resolve, Edius audio is in the same position except in Premiere pro, where is with 1-2 frame desync. In the screenshot in Premiere you can see audio waveform on Track 1 is "ahead" and cut from beginning, compare to all other tracks.

I check different version of Premiere on PC and MAC and it is the same.
This is very bad, because I must work with H264 proxy for remote editing - collaboration.
I think the problem is how Adobe implement Sony XAVC decoding.

Does anyone face same problem?

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