opacity of an image 0 or 100 tied to voice volume keyframes?

Question

This is probably going to be stupidly easy, but I'm relatively new to AE, and I'm stumped.

So what I'm trying to do is make a little speaker symbol (similar to what you see in your taskbar) that reacts to audio.
For the quieter stuff, only one bar becomes visible, and for the louder/max stuff two/all three become visible.

And I mostly have it. But the different bars have a range of opacity. I just want them on/off within that range.

For example, the opacity of this .png is pick-whipped to a slider on the audio track. The slider has this expression on it: linear(value,2.6,4.9,0,100)

Works pretty good, but the opacity needs to be an on/off kind of thing, and not a 0-100% kind of thing.

Here's a screenshot:

Imgur: The most awesome images on the Internet

I've been trying to learn some if/then expressions, some checkbox stuff, and some 0 else 100 stuff... but correctly implementing any of them for this specific task has, so far, been unsuccessful.

Thank you for your help.

Message was edited by: derick white, typos

Henrique -- TMMW · Accepted Answer

You can keep the line breaks there.Paste it into the opacity property.In this line you link to the both channels slider:slider = effect("Slider Control")("Slider"); //LINK TO SLIDERyou final expression should look like this:slider = thisComp.layer("Audio Amplitude wv2").effect("Both Channels")("Slider");min = 2.6; // MINIMUM VALUEmax = 4.9; // MAXIMUM VALUEif(slider>min && slider<max){100}else{0}

Henrique -- TMMW · Answer

Hi there,try this for the expression:slider = effect("Slider Control")("Slider"); //LINK TO SLIDERmin = 2.6; // MINIMUM VALUEmax = 4.9; // MAXIMUM VALUEif(slider>min && slider<max){100}else{0}

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded