let higherPitchOsc;

let lowerPitchTimer = 0;

let higherPitchTimer = 0;

let intervalLowerPitch = 1370;

let intervalHigherPitch = 1450;

let isPlaying = false;

​

function setup() {

  createCanvas(400, 400);

​

  // Create oscillators for the sounds

  lowerPitchOsc = new p5.Oscillator(220, 'sine'); // 220 Hz (A3)

  higherPitchOsc = new p5.Oscillator(440, 'sine'); // 440 Hz (A4)

​

  // Create play and stop buttons

  let playButton = createButton('Play');

  playButton.position(150, 150);

  playButton.mousePressed(playSounds);

​

  let stopButton = createButton('Stop');

  stopButton.position(250, 150);

  stopButton.mousePressed(stopSounds);

}

​

function draw() {

  background(220);

​

  if (isPlaying) {

    // Update timers

    lowerPitchTimer += deltaTime;

    higherPitchTimer += deltaTime;

​

    // Check if it's time to play the lower pitch sound

    if (lowerPitchTimer >= intervalLowerPitch) {

      lowerPitchOsc.start();

      lowerPitchOsc.amp(0.5, 0.5); // Set amplitude to 0.5 over 0.5 seconds

      setTimeout(() => {

        lowerPitchOsc.amp(0, 0.5); // Fade out over 0.5 seconds

      }, 500); // Play for 0.5 seconds

      lowerPitchTimer = 0;

    }

​

    // Check if it's time to play the higher pitch sound

    if (higherPitchTimer >= intervalHigherPitch) {

      higherPitchOsc.start();

      higherPitchOsc.amp(0.5, 0.5); // Set amplitude to 0.5 over 0.5 seconds

      setTimeout(() => {

        higherPitchOsc.amp(0, 0.5); // Fade out over 0.5 seconds

      }, 500); // Play for 0.5 seconds

      higherPitchTimer = 0;

    }

  }

}

​

function playSounds() {

  isPlaying = true;

}

​

function stopSounds() {

  isPlaying = false;

  lowerPitchOsc.stop();

  higherPitchOsc.stop();

  lowerPitchTimer = 0;

  higherPitchTimer = 0;

}

​