Microphone - Vibration Effect

Hello all,

This is my very first post so be nice :beam:

I was hoping I could get some help with this great tutorial I just followed: http://www.kirupa.com/developer/actionscript/microphone.htm

I want to convert this into AS3 can anyone help with this? What is the method that I need to call to move the image based on the microphone in AS3? This is what I have so far:

mic.addEventListener(ActivityEvent.ACTIVITY, blaster);

function blaster(event:Event):void {
    circle.scaleX = circle.scaleY = mic.activityLevel;
    trace("Mic Activity: " + mic.activityLevel);
}

This sort of works but its not as responsive as the one on the tutorial.

I wil really apprecitate any help. Thanks all.