Linking the speed of a clip to the amplitude of an audio file

Forum|Forum|3 years ago
May 3, 2022
返信数 2.
1220 ビュー

Hello, I am working for visuals for a music upload on youtube and I want the playback speed of a clip to be linked to the amplitude of a sound.

I linked stuff to audio amplitude multiple times in the past like a clip's scale or something.

My guess is this time I have to link Time Remapping of the clip to the audio amplitude and change the expression to an addition. But no matter what the expression is always an error. Even just by default linking the time remapping to the amplitude gives me an error.

Help appreciated

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解決に役立った回答 Dan Ebberts

I think this will work for that:

http://www.motionscript.com/articles/speed-control.html#other-applications

Mathias Moehl

Community Expert

If you don't want to write expressions, this tutorial (which uses my paid extension BeatEdit for Ae) uses another very flexible and powerful workflow to time-remap videos in sync with the beat:

Short version:

Long Version

Mathias Möhl - Developer of tools like BeatEdit and Automation Blocks for Premiere Pro and After Effects

Dan Ebberts

解決！

Community Expert

I think this will work for that:

http://www.motionscript.com/articles/speed-control.html#other-applications

K

Kalysta243047279fi6作成者

Participant

I tried pasting the code presented on that page into the time remapping expression and it's still an error. I don't comprehend that code enough to troubleshoot it

Dan Ebberts

Community Expert

Hard to say without seeing the error message, but the expression assumes you have used Animation > Keyframe Assistant > Convert Audio to Keyframes on your audio layer to generate an "Audio Amplitude" layer with a slider named "Both Channels". Other than that, I can't think of a reason it wouldn't work.

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