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Animating a mouth using audio waveforms
I’d like to use the waveform of an audio file (the loudness/db of the file specifically) to animate a mouth on a person’s face that i’ve rotoscoped out.
The animation wouldn’t be something like actually moving the lips to pronounce each word, rather just an entire jaw moving up and down vertically or rotating on the X axis.
Is there a way to do this?
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3 Replies
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Sure. Convert your audio to keyframes (Animation > Keyframe Assistant > Convert Audio to Keyframes) then add an expression like this to the layer you want to move up and down:
amp = .5;
y = thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”)*amp;
value + [0,y]Adjust amp to increase or decrease the movement; make it a negative number to move up instead of down.
Dan
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That worked great 🙂 Is there a similar expression though that would chain to the rotation of an object (like a jaw) instead of the Y movement?
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It would be very similar:
amp = 1;
r = thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”)*amp;
value + rDan
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