AudioRecorder

Recorder for WebAudio API

Install

npm install audiorecorder --save

API

• new AudioRecorder(audioContext) - initialize
• .node - WebAudio node
• .start() - start capturing audio
• .stop() - stop capturing audio
• .exportWaveBlob() returns WAVE file

Usage

Example usage (record 5 seconds of user stream):

import AudioRecorder from 'audiorecorder';
import { saveAs } from 'filesaver.js';

let ctx = new (window.AudioContext || window.webkitAudioContext || window.mozAudioContext)();
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia;

navigator.getUserMedia({ audio: true }, (e) => {
    let audioInput    = ctx.createMediaStreamSource(e),
        audioRecorder = new AudioRecorder(ctx);

    audioInput.connect(audioRecorder.node);
    audioRecorder.node.connect(ctx.destination);

    audioRecorder.start();

    setTimeout(() => {
        audioRecorder.stop();

        let recorded = audioRecorder.exportWavBlob();
        saveAs(recorded, 'recorded.wav');
    }, 5000);


}, (e) => {
    console.log('error');
});

License

MIT