Week 9 Assignment

// MONITOR MICROPHONE INPUT & VISUALIZE

// Define global variables

// To make variables accessible from every function in the sketch

var micLev;

var micGain;

​

function setup() {

  createCanvas(800, 800);

  background("#141432");

​

  // Set additional gain for input data

  // Change this value to increase or

  // decrease the mic sensibility

  micGain = 3;

​

  // Initialize microphone

  mic = new p5.AudioIn();

​

  // Enable microphone

  mic.start();

}

​

function draw() {

  // set background color

  background("#141432" + "10");

​

  // assign micLev to microphone input volume

  micLev = mic.getLevel() * micGain;

​

  var x = width / 2;

  var y = height / 2;

​

  // Size of the pattern

  var size = 300 + micLev * 500;

​

  // Stroke color and weight of the triangles

  stroke("#FFC896");

  strokeWeight(2 + micLev * 5);

  noFill();

​

  for (var i = 0; i < 10; i++) {

    push();

    translate(x, y);

    rotate(frameCount * 0.02 + i);

    triangle(0, -size / 2 + i, -size / 2 + i, size / 2 - i, size / 2 - i, size / 2 - i);

    pop();

  }

}