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Modifying an mp4

Posted: Mon Feb 19, 2018 8:07 pm
by illuzioner
I have need to modify the audio of mp4 files. I simply want to open the file and set specific segments of volume to zero. I need to do this programatically. With mp3 files I can convert them to wav files and rewrite them. But with variable bit rates in mp4 and the need to stay synched with video, I'm not sure how to do that.

Can anyone recommend the right approach to do this?