Web Audio API - record to MP3?

Question

I am asking because I couldn\'t find the answer anywhere. I have successfully implemented RecorderJS in order to record microphone input in JS. However, the recorded file is WAV

Answer 1

I was frustrated with this problem, and existing solutions, so I came up with something simpler:

https://github.com/sb2702/audioRecord.js

Usage

Create a recorder object (async because requires user permission)

    Recorder.new(function(recorder){ 

    }); 

Start recording

         recorder.start();        

Stops recording

         recorder.stop();    

Export as mp3

         recorder.exportMP3(function(mp3Blob){ 

            console.log("Here is your blob: " + URL.createObjectURL(mp3Blob));

          });

Mostly based on RecorderJS, but changed some things around to export to mp3 files, and to not have to muck around with AudioContext / navigator.getUs