Microphone Recorder to Mp3

Record your microphone audio input and get an audio/mp3 file in the end. Written in TypeScript

Install

npm

npm install mp3-recorder

Development

• Watch for changes:

npm run watch

• Regular build:

npm run build

How to use

const MicRecorder = require('mp3-recorder');

// New instance
const recorder = new MicRecorder({
  bitRate: 128
});

// Start recording. Browser will request permission to use your microphone.
recorder.start().then(() => {
  // something else
}).catch((e) => {
  console.error(e);
});

// Once you are done singing your best song, stop and get the mp3.
recorder
.stop()
.getMp3().then(([buffer, blob]) => {
  // do what ever you want with buffer and blob
  // Example: Create a mp3 file and play
  const file = new File(buffer, 'me-at-thevoice.mp3', {
    type: blob.type,
    lastModified: Date.now()
  });

  const player = new Audio(URL.createObjectURL(file));
  player.play();

}).catch((e) => {
  alert('We could not retrieve your message');
  console.log(e);
});

• Check the samples folder for more examples.

• Live example on jsfiddle

Lamejs Notice

This library uses lamejs as a direct dependency. We build our releases with lamejs built-in, so you don't need to add another dependency.

Thanks to @zhuker for writing the lamejs library.

License

MIT