Easily record microphone on all devices

greggcbs

GreggHume

Posted on August 24, 2022

Easily record microphone on all devices

I have had an array of issues with mediaRecorder:

  1. Audio doesnt play on all devices or browsers
  2. Audio isnt in a standard format
  3. Audio is blank on some devices like ios

This package saved my life! No data chunks, no converting of files or types, it does it for you:
https://github.com/closeio/mic-recorder-to-mp3

Simple code example:

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

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

// Start recording. Browser will request permission to use your microphone.
recorder.start().then(() => {
  // update ui or whatever
}).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);
});
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Beats working with mediaRecorder directly. Thanks closeio, you make us devs look like we know what we are doing.

💖 💪 🙅 🚩
greggcbs
GreggHume

Posted on August 24, 2022

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