I finally got it!

This expression checks the past 3 frames to see if they all fall below the threshold, and if so, executes a command.

x = thisComp.layer(“A_BASS”).effect(“Both Channels”)(“Slider”);
threshold = 50.0;

wentBelow = false;
isBelow = false;
frame = Math.round(time / thisComp.frameDuration);
oldFrame = Math.round(time /…

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Well Dan, I’m ashamed to admit it, but I’m stuck.

x = thisComp.layer(“A_BASS”).effect(“Both Channels”)(“Slider”);
threshold = 50.0;

below = false;
frame = Math.round(time / thisComp.frameDuration);
oldFrame = Math.round(time / thisComp.frameDuration) – 3;

d = 3;
n = 0;
while (frame > oldFrame){
t = frame * thisComp.frameDuration;
if (below){
…

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Gotcha. I saw you use a similar approach on your website for an audio threshold expression. I’ll look into that. I really only need to look back on the previous 3 frames

Oops. I had somehow left that extra “*time” in there!

Is it not possible to get the value calculated by the expression at the previous frame? That’s exactly what I need to do…

Hey guys. Been browsing this forum for years, and now I finally have a question so I made an account.

I have the expression read a variable (x) that has a different value every frame.
x = thisComp.layer(“A_BASS”).effect(“Both Channels”)(“Slider”);

if (x.valueAtTime(time) < 30) {
valueAtTime(time-thisComp.frameDuration*time)-1;
}
else 100+(x/2);

For…

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