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Time compress audio – w/out changing pitch
Hey all,
I need to sweeten some audio on a project. There is music audible in the dialogue, so I need to keep it, but I want to sweeten it to give it a better sonic quality. I have a version of the music that is in the exact same key, but the timing is off.
The music in the production track is 44 kHz 16-bit audio in a video clip captured at 23.98. The length from first to last note is 00:01:05.12.
My version is a 44 kHz 16-bit AIFF file, in the exact same key, but it is 00:01:08.15 long.
The two songs sound identical to me, so perhaps it is a frame rate issue that makes it not match. Is there a way to convert it to match or perhaps a way to time compress without effecting pitch to make it match the length of the other clip exactly?
Any help would be much appreciated.
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2 Replies
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Firstly convert everything to 48khz. FCP doesn’t play well with on the fly sample rate conversion.
Changing length without changing pitch properly requires software not found in FCP or STP. Find someone with either MPEX3 or Pitch N Time. If you calculate the lengths correctly then get the file processed with either of those software packages and replace the original.
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Actually if you know the frame count you need to have, STP will shorten or lengthen a track without changing pitch. If it’s an extreme change, quality will suffer but for normal pulldown or frame rate issues it’s fine.
you need to convert TC to Frame count in order to use it and it needs to be in the editing window not the timeline. Make a copy of the track and use that until you achieve the desired resultDoug Beal
Editor / Engineer
Rock Creative Images
Nashville TN
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