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Post #961020

Author
NeonBible
Parent topic
How to pitch shift an AC3 file without affecting length/tempo?
Link to post in topic
https://originaltrilogy.com/post/id/961020/action/topic#961020
Date created
29-Jun-2016, 5:41 PM

This is a bit of strange situation due to a DVD mastering fault.

I have a TV series where the DVD is PAL but I think the audio has been pitch corrected except for one episode. This one episode everyone sounds like chipmunks. I think it’s actually sped up not by usual PAL speed up of 4%, but 8%!

I know this by performing a quick test in VLC by playing back first at 0.96 speed but it still sounded high. 0.94 would be about right.

Anyway, I don’t want to simply convert from 25fps to 23.976, I want keep the video as it is but pitch shift the audio down by 8%. How would I achieve this without re-compressing the AC3?