Quote:Only in one of them (mp4:MP4Box with delay compensation), an additional step is introduced before creating the container:No clue without a debug output. I probably could search which code paths might be the cause of this, but searching blindly will take me hours,..
renaming iId_2_aid_1_DELAY_-41ms.aac to iId_2_aid_1_ms.aac
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What's confusing is that if mkv really removed the delay before muxing and doesn't use it, shouldn't the output be the same as when the delay isn't used?
-> like I wrote, need a debug output to look into the code.

Cu Selur
Ps.: might also be interessting whether the observersions are still true when he-aac and he-aacv2 are used instead of lc-aac (<- I assume you used lc-aac, since you didn't mention what ou are using,...)
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Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.