• Adobe After Effects Expressions

  Can i get a “figed time”?

  Posted by Fabrice Boulard on February 12, 2018 at 4:06 pm

  Hi everybody!
  I did a metronome. The vertical bar is animated by a simple expression :
  var amplitude = 32;
var bpm = 120; (beatPerMinute)
var f = (bpm/60)*2; (frequence)
sin(2*Math.PI*f*time)

  Now i want to play a sound at the right time. It’s why i created a comp. Into this, a only one soundlayer with a marker at the frame number 1 (not 0).
  I commented this marker : “playSound”.

  I addded this comp in another comp to time remaptime it and add expression on it :

  var c = thisLayer.source;
var myComment = "playSound";
var m= c.marker.key(myComment);

  var amplitude = 32;
  var bpm = comp('metronome').layer('barre').effect("Paramètre glissière")("Curseur");
  var velocité = 2*Math.PI*((bpm/60)/2);

  var v = amplitude*Math.sin(velocité * time);

  frames = timeToFrames(t = time + thisComp.displayStartTime, fps = 1.0 / thisComp.frameDuration, isDuration = false);
  iTime = framesToTime(frames+1, fps = 1.0 / thisComp.frameDuration);
  iV = amplitude*Math.sin(velocité * iTime);

  absV = Math.abs(v);
  absiV = Math.abs(iV);

  if(absV == amplitude || (absV

  I need to substract the time value when the condition begins true and i don't know how to do that...
  "m.time + time - figedTime"

  Thx for help

  Fabrice Boulard replied 8 years, 6 months ago 1 Member · 0 Replies
• 0 Replies

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