alert('clicca per far partire l\'audio')

​

let song, amp

let history = []

​

function preload(){

  song = loadSound('assets/sunny.mp3');

}

​

function setup(){

  let cnv = createCanvas(windowWidth,windowHeight);

  cnv.mouseClicked(togglePlay);

​

  // Classe per audio che carichi

  amp = new p5.Amplitude();

  amp.setInput(song)

​

  // Classe per mic

  mic = new p5.AudioIn();

  mic.start();

​

}

​

function draw(){

  clear()

  noFill()

​

  // Volume traccia che carichi

  let vol = amp.getLevel();

  // Volume microfono

  let micVol = mic.getLevel();

​

  history.push(vol)

​

  push()

  stroke('red');

  strokeWeight(2.5);

  beginShape();

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

    // Lo 0.1 è in base al valore del volume in basso

    let y = map(history[i], 0, 0.1, height / 2, 0)

    curveVertex(i * 2, y)

  }

  endShape();

  if(history.length > width / 2){

    history.splice(0,1)

  }

  pop()

}

​

function togglePlay() {

  if (song.isPlaying() ){

    song.pause();

  } else {

    song.play();

    song.setVolume(0.1)

​

  }

}

​

​