[Dan Ebberts]

>Once the pre-comped voice over track ends…

How will the expression know this has happened?

[Dan Ebberts]

Are you saying that the voice over layer always exists and the level will be -12 while voice over is happening and -50 when it’s not, with no fading? Or something else?

[Dan Ebberts]

I’m guessing you either have File > Project Settings > Expressions > Expression Engine set to Legacy Extendscript (instead of JavaScript) or you’re running an old version of AE

[Dan Ebberts]

One thing I see is that in line 29 you’ve got

s1.lenght 

instead of

s1.length

[Dan Ebberts]

I think the scale expression for your folded paper layers is going to need to look something like this to account for the slider and the scale of the track matte:

c = comp("LO 02 - Producer Name Reveal L to R 02");
s1 = c.layer("Paper Unfold Intro - Driven").effect("Slider Control")("Slider");
s2 = c.layer("Matte - Driver").scale[0];
x = (scale[0] - s1)/(s2/100);
[x,value[1]]

But I think you’ll have to adjust your initial values (something doesn’t seem quite right).

[Dan Ebberts]

I think we might need more info to help. How about some examples (numbers) that give the relationship that you want to see between the two scale values?

[Dan Ebberts]

If you’re using the JavaScript engine, something like this should work:

myLayers = [1,12];
containingLayers = [1,2,3,4,5];
success = true;
for (var i = 0; i < myLayers.length; i++){
  if (! containingLayers.includes(myLayers[i])){
    success = false;
    break;
  }
}
success

[Dan Ebberts]

Unfortunately, I think that’s how it is.

[Dan Ebberts]

This is probably better:

var myProp = app.project.activeItem.layer(1).property("Marker");
try{
	var t = myProp.keyTime("test");
	var myKey = myProp.nearestKeyIndex(t);
	myProp.removeKey(myKey);
}catch(e){
}

[Dan Ebberts]

It worked for me. It wouldn’t give an error if it didn’t find a marker with your comment (you did change that from “test”, yes?)