I know that i can extract the streams from the MP4, covert the audio and then create another MP4 from those streams. But i was wonderign if there is a way to do this in a more automated fashion. Such as a command for ffmpeg that i could maybe run as a batch command? The problem i have is that i have many MP4s that i need to do this with, so doing each one manually is an extremely time consuming process.
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Mp4 should use aac not ac3.Got my retirement plans all set. Looks like I only have to work another 5 years after I die........
and the batch something like
for %%a in ("*.mp4") do ffmpeg -i "%%a" -c:v copy -c:a ac3 -b:a 224k "newfiles\%%~na.mp4" pause
But why do you need ac3?