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Activity Forums Adobe After Effects Expressions having an Audio Spectrum that shows text

  • Sam Rose

    August 26, 2007 at 10:39 am

    wait, I have another thought. Is there an expression that would change the opacity of the spectrum the louder the music is, so if the music is quiet then the opacity is darker?

  • Mike Clasby

    August 26, 2007 at 6:17 pm

    This seems to do what you want. Put this expression on Opacity (T):

    minOp = 0;
    maxOp = 100;
    minAudio = 0;
    maxAudio = 15;

    audioLev = thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);
    Op = linear(audioLev, minAudio, maxAudio, minOp, maxOp);
    Op

    If the overall opacity seems to low, lower the maxAudio to well below you actual Slider Values (for both channels). I had to lower mine to 5 to get it to look right. It just all depends on your audio levels and the results you want. Would love to see the final product. Have a good weekend.

  • Sam Rose

    August 27, 2007 at 4:12 pm

    Wow thanks, it looks great now

  • Mike Clasby

    August 27, 2007 at 11:34 pm

    Excellent.

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