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Activity Forums Adobe After Effects Expressions Opacity reversed to audio

  • Opacity reversed to audio

    Posted by Lewis Snook on April 22, 2016 at 3:22 pm

    Hi,

    Can someone help me with this:

    I have pickwhiped a shape’s opacity value to the audio amplitude slider so that the object becomes more opaque with louder volume.

    How can I reverse this effect so that the object gets less opaque the louder the volume?

    Ross Klettke replied 10 years ago 3 Members · 4 Replies
  • 4 Replies
  • Dan Ebberts

    April 22, 2016 at 4:00 pm

    Something like this:

    ampMult = 2.5;
    value – ampMult*thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);

    Dan

  • Lewis Snook

    April 22, 2016 at 4:16 pm

    thanks, i’ve been trying to work this one out for myself since I want to get better at these expressions, but I just couldn’t crack the syntax. This works a treat.

  • Lewis Snook

    April 23, 2016 at 2:52 pm

    This is completely different to the topic; but when checking task manager I’ve noticed that After Effects is only using 70% of my Ram for rendering. Is there way I can increase this to speed up render times?

  • Ross Klettke

    April 25, 2016 at 10:52 pm

    Within After Effects go to Preferences > Memory
    — you can allow Adobe to take advantage of more memory there

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