How to change audio channel assignments in quicktime movie files - QT7 could do it, but not on a modern OS X?

This was easy to do in QT7 when looking at 'movie properties'.

I still need to do this, but need to be on a modern OS X.


How can one change audio channel assignment from 'mono' to 'left' for example?


This post from 2014 shows the QT7 movie properties audio assignment window in action:

https://discussions.apple.com/thread/5967906?answerId=25219940022#25219940022

Posted on Sep 12, 2021 12:42 PM

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How to change audio channel assignments in quicktime movie files - QT7 could do it, but not on a modern OS X?

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