var song;

​

function preload(){

  song=loadSound("songex.mp3");

}

​

function setup() {

  createCanvas(300,300);

  song.play();

  mic=new p5.AudioIn();

  mic.start();

}

​

function draw() {

  background(100);

  vol=mic.getLevel();

  diam=map(vol,0,1,1,3900);

  fill(255);

  ellipse(width/2-30,height/2-60,30,30);

  ellipse(width/2+30,height/2-60,30,30);

  fill(0);

  ellipse(width/2-30,height/2-60,10,10);

  ellipse(width/2+30,height/2-60,10,10);

  fill(0);

  ellipse(width/2,height/2,200,diam);

  // console.log(vol);

}