let analyzer = new Tone.Waveform(256);

mic.connect(analyzer);

mic.open();

​

function setup() {

  createCanvas(400, 100);

}

​

function draw() {

  background(0);

​

  let waveform = analyzer.getValue();

​

  strokeWeight(2);

  noFill();

  stroke(255);

  beginShape();

  for (let i = 0; i < waveform.length; i++) {

    let x = map(i, 0, waveform.length, 0, width);

    let y = map(waveform[i], -1, 1, height, 0);

    vertex(x, y);

  }

  endShape();

​

}