Sound_Probe3

let sound;

let peaks;

let index = 0;

let amplitude;

let radius;

​

function preload() {

  sound = loadSound("mixkit.mp3");

}

​

function setup() {

  cnv = createCanvas(700, 700);

  background(100);

​

  //cnv.mouseClicked(togglePlay);

  sound.amp(0.3);

​

  sound.loop();

  amplitude = new p5.Amplitude();

  peaks = sound.getPeaks();

  print(sound.duration());

}

​

function draw() {

  background(0);

​

  radius = width/2-50;

  translate(width/2, height/2);

  rotate (millis (3)/ 1000);

  circle (50, 50, 50 );

  // Peak circle

  fill(100, 20, 100);

  stroke(255);

  beginShape();

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

    peak = map(peaks[i], 0, 1, 1, 50);

    step = map(i, 0, peaks.length, 0, 2*PI);

    x = (peak+radius) * cos(step);

    y = (peak+radius) * sin(step);

    vertex(x, y);

    //radius -= 1;

  }

  {

    translate(CENTER);

  // mapping of sin over time (-1 ... +1) to -200 ... 200

  // speed is defined by /1000

  let s = map(sin(millis()/300), -1, 1, -100, 100);

  noFill();

  stroke(255);

  translate(s, 0);

  //ellipse(0, 0, 200, 200);

  //ellipse(0, 0, 50, 50);

  ellipse(0, 0, s, s);

  translate(s, -s, 0);

  ellipse(0, 0, s, s);

  translate(s, -s, 0);

  ellipse(0, 0, -s,-s);

  translate(-s, 0); //umgedreht

  ellipse(0, 0, -s, -s);

  translate(-s, s, 0);

  ellipse(0, 0, -s, -s);

  //translate(-s, s, 0)

  ellipse(0, 0, s, s);

  }

  endShape();

  // Sound position

  sound_angle = map(sound.currentTime(), 0, sound.duration(), 0, 2*PI);

  sx = (peak+radius) * cos(sound_angle);

  sy = (peak+radius) * sin(sound_angle);

  ellipse(sx, sy, 10, 10);

}