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This can happen if the GOP structure is unclosed at the end of the video. If you can assure that your video ends with an I frame, and that the audio is exactly the same length as the video, you stand a much better chance of getting a smooth recycle. Sorry, I don't know how to force that using ffmpeg.


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I'm not sure why they are not lining up, perhaps there is some problem with the audio track near the beginning that is causing truncation at the start. Unless you have meaningful information there, my suggestion would be to remove the silence at the end of the audio file (since it is clear when it goes perfectly silent) and then end align rather than start ...


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After a few hours of searching, I was only able to find this. I don't know if that's kind of what you are looking for, or at least gives you the info you need to modify the channel volume. I hope it helps!


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The other answers both cover the ideal case pretty well, but there is another less ideal case. Depending on your type of video, it is possible you have either bad clock sync or dropped frames. Bad clock sync will hopefully be corrected by the stretching method Jim Mack mentioned, but if the clock is irregular (pretty unlikely in this day) then you could ...


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Interesting that LW shows it as '24 fps' since audio technically doesn't have a frame rate, which is a video concept. As @tomh suggests, make sure the sample rates for the project is 48K, and that you export a 48K WAV file from Audacity. If that doesn't cure, you can use Audacity to 'pre-stretch' the audio by some percentage. Find sync points near the ...


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Make sure the sample rates in both systems are the same. I don't know what OBS is, but if I was using Final Cut for video editing, I would make my project 48kHz, and make sure any external recordings were also at 48kHz. Even with the same sample rates, audio will drift over periods of more than a few minutes. Either sync it up manually in chunks, or use ...


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An und handled execption is never a good sign. That means its either a bug in the application, in that case there is usually not much you can do other than sending Adobe a detailed report about the crash. Another possibility can be a malfunctioning driver or a hardware failure. Maybe you have recently installed something or updated a driver? Reverse that ...



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