• Adobe After Effects Expressions

  expression controle

  Posted by Peter on November 3, 2005 at 2:16 pm

  Hi there,

  i’m linking the scale property with the pickwickwheel to an Audioamplitude,so that the layer scales with the beat.
  because I wanted it to scale stronger I added *30
  so have this expression written:

  temp = thisComp.layer(“Audioamplitude”).effect(“Linker Kanal”)(“Schieberegler”);
  [temp, temp]*30

  The question:
  How can I manage, that it doesn’t scale to zero when there’s no beat,
  how can i limitize the downscale?

  thx
  Peter

  Dan Ebberts

  

  replied 20 years, 6 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Dan Ebberts

  November 3, 2005 at 4:03 pm

  The easiest way is probably just to add an offset:

  temp = thisComp.layer(“Audioamplitude”).effect(“Linker Kanal”)(“Schieberegler”);
  [temp, temp]*30 + [25,25]

  Where 25 would be the minimum. You’ll have to adjust your multiplier (30) to end up with the same maximum value.

  Dan
• 

  Peter

  November 3, 2005 at 7:34 pm

  thanx, works totally fine for me.
  and can i smooth the movements, easy ease like?

  peter
• 

  Dan Ebberts

  November 3, 2005 at 8:33 pm

  You could try the smooth() method like this:

  temp = thisComp.layer(“Audioamplitude”).effect(“Linker Kanal”)(“Schieberegler”).smooth(.2,5,time);
  [temp, temp]*30 + [25,25]

  Dan

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