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  • Adobe After Effects Expressions

    Opacity with Soundkeys

    Posted by Jim Branstetter on January 5, 2013 at 12:21 am

    Hi,

    I need a little help.

    I’m trying to determine opacity triggered by an isolated beat in the music with soundkeys. I have the soundkeys output parameter 0-100. I like the look of what I have but its backwards…

    Its dark (0 opacity) until the beat then I get 100% opacity.

    I would like it to show the image at 100% until the beat when it would go to 0% during the beat.

    the expression im using to link to soundkeys is below and that gives me the opposite of what I want (see above):

    I have tried using other expressions but always get an error.

    Thanks, Jim

    thisComp.layer("Black Solid 6").effect("Sound Keys")("Output 1")

    Jim Branstetter
    RubberBulletStudio.com

    Jim Branstetter replied 13 years, 4 months ago 2 Members · 2 Replies
  • 2 Replies

  • Dan Ebberts

    January 5, 2013 at 1:24 am

    Try this:

    100 – thisComp.layer(“Black Solid 6”).effect(“Sound Keys”)(“Output 1”)

    Dan

  • Jim Branstetter

    January 5, 2013 at 2:42 am

    works perfect

    Thanks Dan

    Jim Branstetter
    RubberBulletStudio.com

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