volume demo

var input;

var analyzer;

var multiplier = 10000;

var threshold = 5;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  input = new p5.AudioIn();

  input.start();

}

​

function draw() {

  background (100, 100);

  var volume = input.getLevel();

  //print(input.getLevel());

  if (volume*multiplier > threshold)

  {

    fill (200, 20, 20);

    ellipse (windowWidth/2, windowHeight/2, volume*multiplier, volume*multiplier);

  }

}