var canvas; var mic; function windowResized() { resizeCanvas(windowWidth,windowHeight) } function setup () { canvas = createCanvas(windowWidth,windowHeight) canvas.position(0,0); canvas.style('z-index', '-1') mic = new p5.AudioIn(); mic.start() } function draw () { background('#88afff'); describe('canvas with light blue background'); var vol = mic.getLevel(); ellipse(width/2, height/2, vol*100) }