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Activity Forums Adobe After Effects Expressions Mouth Expression = Opacity

  • Mouth Expression = Opacity

    Posted by Scott Brignac on October 7, 2009 at 8:58 pm

    Dan,

    How do I convert this expression below that you wrote to something similiar for mouth movements for opacity? I just have a layer with the mouth open, and want the expression to look at the converted audio keyframes and pop on and off to sync the mouth.

    Thanks so much.

    mult = 0.5;
    value + [0,thisComp.layer("Audio Amplitude").effect("Both Channels")("Slider")*mult]

    Dan Ebberts replied 16 years, 7 months ago 2 Members · 1 Reply
  • 1 Reply
  • Dan Ebberts

    October 7, 2009 at 10:17 pm

    I’m not sure what you mean, but maybe something like this:

    threshold = 20;
    aud = thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);
    if (aud > threshold) 100 else 0

    Dan

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