​

//SoundFile file;

var fft;

let angle = 0;

let fft2;

var mic;

var bands = 1024; // resolution of the FFT

var spectrum, spectrum2;

var terrain = [];

var terrain2 = [];

var terrain3 = [];

let zoom = 2;

let peak = 50;

//let notes = ["A7","F6","G6","E6","D6"," "," "," "," "," "," "];

let notes = [

  ["A5", "C#5", "E5"],

  ["A5", "C5", "E5"],

  ["D5", "F#5", "A5"],

  ["G4", "B5", "D5"],

  ["E4", "G4", "B4"],

  ["C3", "E3", "G3"],

  ["F3", "A3", "C4"]

];

​

let keynotes = [

  ["C2", "E2", "G2"],

  ["F2", "A2", "C2"],

  ["A2", "C2", "E2"],

  ["B2", "D2", "F#2"],

  ["C3", "E3", "G3"],

  ["F3", "A3", "C3"],

  ["A3", "C3", "E3"],

  ["B3", "D3", "F#3"]

];

​

​

var lines = 60;

let duration;

let durationk;

let trigger;

var synth;

let synthkey;

let px = 0;

let notecounter = 0;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  //frameRate(15);

  //file = new SoundFile(this, "03badnews.mp3");

​

  // file = new SoundFile(this, "popcorn.mp3");

  //terrain = new float [lines][bands];

  // create fft object

  fft = new p5.FFT(0.85, bands);

  fft2 = new p5.FFT(0.85, bands);

  fft3 = new p5.FFT(0.85, bands);

  // create audion in

  mic = new p5.AudioIn();

​

​

  //// start the Audio Input

  mic.start();

  synth = new p5.PolySynth();

  synthkey = new p5.PolySynth();

  //  synth.AudioVoice = 16;

  fft.setInput(mic);

  //fft.setInput(synth);

  //fft.setInput(synthkey);

  fft3.setInput(mic);

​

  for (let y = 0; y < lines; y++) {

    terrain[y] = [];

    for (let x = 0; x < bands; x++) {

      terrain[y][x] = 0;

    }

  }

​

  for (let y = 0; y < lines; y++) {

    terrain2[y] = [];

    for (let x = 0; x < bands; x++) {

      terrain2[y][x] = 0;

    }

  }

​

  for (let y = 0; y < lines; y++) {

    terrain3[y] = [];

    for (let x = 0; x < bands; x++) {

      terrain3[y][x] = 0;

    }

  }

  //strokeWeight(2);

  // setInterval(chooseNote, 120);

}

​

function draw() {

  background(0);

  // fill(255, 255, 0);

//  noFill();

​

   noFill();

  // translate(-width / 2, 30,0);

  //  rotateX(radians(-60));

  zoom = map(mouseX, 0, width, 2, 100);

  // translate(0, 0);

  //rotateZ(radians(rotZ));

  //-translate(0, -600);

  spectrum = fft.analyze();

  spectrum2 = fft2.analyze();

  spectrum3 = fft3.analyze();

​

​

​

  // beginShape();

 // push();

​

  translate(width / 2, height / 2);

 //translate(mouseX,mouseY);

​

​

​

  //fill(255);

  beginShape();

 angle = TWO_PI/spectrum.length;

​

  for (let x = 0; x < spectrum.length; x++) {

    let amp = map(spectrum[x], 0, 255, 0, height/2);

    let gval = map(x, 0, spectrum.length, 0, 255);

    let ang = map(x,0,spectrum.length,0,TWO_PI);

   // fill(255, gval, 0);

    stroke(255, gval, 0);

   let a = amp * sin(ang*11);

    let  b = amp *cos(ang*17);

  //    let a = amp * sin(ang*102);

   //let  b = amp *cos(ang*102);

   // rotate(angle);

   // rotate(angle*x);

   // point(0, amp + 50);

   vertex(a, b);

​

  }

   endShape(CLOSE);

  //  vertex(width / 2, ((height / lines) * y + 70))

​

 // pop();

  //  endShape();

​

​

  // for (let y = 0; y < terrain.length; y++) {

  for (var y = lines - 1; y >= 0; y--) {

    //for (var i = 0; i < bands; i++) {

    terrain2[0] = spectrum2;

    if (y > 0) {

      if (y < lines) {

        terrain2[y] = terrain2[y - 1];

      }

    }

  }

​

  for (let y = lines - 1; y >= 0; y--) {

    //for (var i = 0; i < bands; i++) {

    terrain[0] = spectrum;

    if (y > 0) {

      if (y < lines) {

        terrain[y] = terrain[y - 1];

      }

    }

  }

  for (let y = lines - 1; y >= 0; y--) {

    //for (var i = 0; i < bands; i++) {

    terrain3[0] = spectrum3;

    if (y > 0) {

      if (y < lines) {

        terrain3[y] = terrain3[y - 1];

      }

    }

  }

​

}

​

function keyPressed() {

  chooseKeyNote();

}

​

function keyReleased() {

  synthkey.noteRelease();

}

​

function mousePressed() {

  chooseNote();

}

​

function mouseReleased() {

  synth.noteRelease();

}

​

function chooseNote() {

  // synth.noteRelease();

  let chordPicker = floor(random(notes.length));

  // console.log(chordPicker);

  duration = random(0.2, 1.0);

  //  play(note, [velocity], [secondsFromNow], [sustainTime])

  //synth.play(notes[floor(random(notes.length))], 0.5, .15, .1);

  //synth.triggerAttack(notes[floor(random(notes.length))], 0.3, 0, duration);

  for (let i = 0; i < 3; i++) {

    synth.noteAttack(notes[chordPicker][i], i * 0.2, 0, duration);

  }

}

​

function chooseKeyNote() {

  // synth.noteRelease();

  let chordPicker2 = floor(random(keynotes.length));

  // console.log(chordPicker2);

  durationk = random(0.2, 1.0);

  //  play(note, [velocity], [secondsFromNow], [sustainTime])

  //synth.play(notes[floor(random(notes.length))], 0.5, .15, .1);

  //synth.triggerAttack(notes[floor(random(notes.length))], 0.3, 0, duration);

  for (let i = 0; i < 3; i++) {

//    synthkey.noteAttack(keynotes[chordPicker2][i], i * 0.2, 0, durationk);

  }

}