Duplicate audio in one track

[anil_grasim]

HI hello:
I have ran in to a big problem while recording a video. OBS captured audios from the mixer and from the camera microphone in to one track and the audios are not synced. Is there any way that I can fix this by separating the audio sources from the single track. Thank you in advance for your assistance.

 

[AaronD]

Generally, once it's mixed, you can't unmix. That comes from basic physics. But if the problem is sufficiently well-defined, like "There are two copies of the exact same sound mixed together at the same level, with exactly X number of samples between them, and nothing else is included along with that duplicated sound," then it might be possible to write an algorithm for that exact problem. (find the first silence, then take the first X samples after that and subtract them from the next X samples, then take what's left from that and subtract it from the next X samples, etc.)

As difficult as it would be to throw that away and re-record correctly, it's still probably the better bet to throw it away and re-record.

Before you do, do a bunch of tests to make sure you've got it right! But you probably know that now. :-)

That's part of system design. Don't trust anything at first, but test the daylights out of it. Try to break it and see where it actually does break, then fix those things so it doesn't anymore and test again. Once it passes all the tests, THEN trust it while you focus on the content.