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Scaling a solid to an audio waveform using expressions.
Hello. I have a solid on my comp that is masked out in the shape of lips. I want the lips to scale up and down with the audio waveform to give the impression that the character is speaking the audio. I have done this before using expressions, but forgot how to get it done. Any help would be great to remind my forgetful brain.
`Tim
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3 Replies
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Search this forum, you surely will come up with something useful.
Mylenium
[Pour Myl
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Here’s an Adobe Support Tut, Using Music to Animate Text:
https://studio.adobe.com/us/tips/tip.jsp?p=1&id=396&xml=aft6audio
To interpolate the audio levels to Scale sizes you like, you can use an expression like this on the scale of your “Lips” layer:
s = linear(thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”),1,12,100,300);
[s,s]
The interpolation says, for audio levels (at the Slider) of from 1 to 12 (my audio ranged from .3 to 12) interpolate that to a scale of from 100% to 300%. So audio of 1 = 100% and audio of 12 = 300% scale. Change the numbers to suit your audio levels and scale desires.
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thank you so much!!! that was such a huge help! you’re the best.
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