let state = 0; // Initialize state to 0

let pitchShift = 1; // Normal pitch

​

function setup() {

  createCanvas(400, 400);

  // Set up mic

  mic = new p5.AudioIn();

  // Set up recorder

  recorder = new p5.SoundRecorder();

  // Connect mic to recorder

  recorder.setInput(mic);

  // Turn on mic

  mic.start();

  // Set up reverb

  reverb = new p5.Reverb();

​

  // Display instructions

  textAlign(CENTER, CENTER);

  background('green');

  text('Press R to record, L to loop.', width / 2, height / 2);

}

​

function keyPressed() {

  if (key === 'r' || key === 'R') {

    if (state === 0 || state === 2) { // Record only if not currently recording or looping

      state = 1; // Set state to record

      sound = new p5.SoundFile();

      recorder.record(sound);

      background('red');

      text('Recording... Press R again to stop.', width / 2, height / 2);

    } else if (state === 1) { // Stop recording

      recorder.stop();

      reverb.process(sound, 3, 2); // Apply reverb

      sound.rate(pitchShift); // Apply current pitch

      state = 2; // Set state to stopped

      background('gray');

      text('Recording stopped. Press L to loop.', width / 2, height / 2);

    }

  } else if (key === 'l' || key === 'L') {

    if (state === 2) { // Loop only if recording is stopped

      sound.loop();

      state = 3; // Set state to looping

      background('green');

      text('Looping... Press R to record.', width / 2, height / 2);

    }

  }

}

​

function keyTyped() {

  if (key === '1') {

    // Increase pitch

    pitchShift += 0.1;

  } else if (key === '2') {

    // Decrease pitch

    pitchShift -= 0.1;

  }

  // Update pitch shift in real-time if sound is looping

  if (state === 3) {

    sound.rate(pitchShift);

  }

}

​