[Ivan Matic]

I found solution that work for me, here is expression:

threshold = 85.0;
audioLev = thisComp.layer("Audio Amplitude").effect("Both Channels")("Slider");
above = false;
frame = Math.round(time / thisComp.frameDuration);
while (true){
  t = frame * thisComp.frameDuration;
  if (above){
    if (audioLev.valueAtTime(t) < threshold){
      frame++;
      break;
    }
  }else if (audioLev.valueAtTime(t) >= threshold){
    above = true;
  }
  if (frame == 0){
    break;
  }
  frame--
}
if (! above){
  t = 0;
}else{
  t = time - frame * thisComp.frameDuration;
}
[easeOut(t,0,1/2.5,0,1920),value[1]]

[Ivan Matic]

Also if i writte expresion just with if and linear, it while now execute, beacuse next frame value is less then 85, and it back [0,0]

[Ivan Matic]

Thanks for the answer, but what would happen if animation need to start again before previous one isnt finished.

Animation need to follow bass on music, so i may happen there are overlapping