let levelThreshold = 0.2; // adjust this to set the sensitivity for color change

​

function setup() {

  createCanvas(600, 600);

  mic = new p5.AudioIn();

  mic.start();

}

​

function draw() {

  // get audio level from the mic input

  let micLevel = mic.getLevel();

​

  // map mic level to the ellipse size

  let ellipseSize = map(micLevel, 0, 1, 10, 200);

​

  // change bg color if the mic level exceeds the threshold

  if (micLevel > levelThreshold) {

    background(random(255), random(255), random(255));

  } else {

    background(255); // default background when below the threshold

  }

​

  // draw the ellipse based on the mic level

  fill(0);

  noStroke();

  ellipse(width / 2, height / 2, ellipseSize, ellipseSize);

}

​