Author: Morgan Mueller

Date: 03/01/19

This example shows how to use the microphone and 

ambient audio to display and manipulate graphics 

and shapes

*/

​

//global variables

let input;

let analyze;

​

function setup() {

  createCanvas(400, 400);

  background(255);

​

  //initialize the microphone

  input = new p5.AudioIn();

  input.start();

​

  //volume thresholds go from 0 - 1

}

​

function draw() {

  //background(220);

    //get the volume and set a threshold

  let vol = input.getLevel();

  let threshold = 0.2;

​

  //if the volume is greater than a threshold value

  //then create the square

  if(vol > threshold){

        stroke(0);

    fill(random(255),random(255), random(255), random(100));

    rect(random(40, width), random(height), vol*50, vol*50);  

​

  }

​

​

​

}