sound.toDestination();

sound.loop = true;

let meter = new Tone.Meter();

meter.normalRange = true;

meter.channels = 1;

sound.connect(meter);

​

let loaded = false;

​

function setup(){

  createCanvas(100,100);

}

​

function draw(){

  background(220);

  if(loaded){

    if(sound.state == "started"){

      console.log(meter.getValue()*100);

      ellipse(width/2, height/2, meter.getValue()*50);

    }    

  }

  else{

    text("loading...", 20, 20);

  }

}

​

function mouseClicked(){

  if(loaded){

    sound.start();

  }

}

​

Tone.loaded().then(function(){

  loaded = true;

});

​