Record Save Audio

Record a sound, play it back and save it as a .wav file to the client's computer. We need three objects: a p5.AudioIn (mic / sound source), p5.SoundRecorder (records the sound), and a p5.SoundFile (play back / save).

To run this example locally, you will need the p5.sound library a sound file, and a running local server.

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let mic, recorder, soundFile;
let state = 0; // mousePress will increment from Record, to Stop, to Play
function setup() {
  createCanvas(400, 400);
  background(200);
  fill(0);
  text('Enable mic and click the mouse to begin recording', 20, 20);
  // create an audio in
  mic = new p5.AudioIn();
  // users must manually enable their browser microphone for recording to work properly!
  mic.start();
  // create a sound recorder
  recorder = new p5.SoundRecorder();
  // connect the mic to the recorder
  recorder.setInput(mic);
  // create an empty sound file that we will use to playback the recording
  soundFile = new p5.SoundFile();
}
function mousePressed() {
  // use the '.enabled' boolean to make sure user enabled the mic (otherwise we'd record silence)
  if (state === 0 && mic.enabled) {
    // Tell recorder to record to a p5.SoundFile which we will use for playback
    recorder.record(soundFile);
    background(255, 0, 0);
    text('Recording now! Click to stop.', 20, 20);
    state++;
  } else if (state === 1) {
    recorder.stop(); // stop recorder, and send the result to soundFile
    background(0, 255, 0);
    text('Recording stopped. Click to play & save', 20, 20);
    state++;
  } else if (state === 2) {
    soundFile.play(); // play the result!
    saveSound(soundFile, 'mySound.wav'); // save file
    state++;
  }
}
 
 
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Language Settings

Record Save Audio