Node.js Audio Mixer

About

Audio mixer that allows mixing PCM audio streams with different parameters.

Installation

Node.js 15.0.0 or newer is required. For versions 2.1.X Node.js 18.0.0 or newer is required.

npm:

npm install node-audio-mixer

pnpm:

pnpm install node-audio-mixer

yarn:

yarn install node-audio-mixer

Example usage

import {createReadStream, createWriteStream} from "fs";
import {AudioMixer} from "node-audio-mixer";

const mixer = new AudioMixer({
    sampleRate: 48000,
    bitDepth: 16,
    channels: 1,
    autoClose: true,
});

const firstInput = mixer.createAudioInput({
    sampleRate: 48000,
    bitDepth: 16,
    channels: 1,
});
const secondInput = mixer.createAudioInput({
    sampleRate: 48000,
    bitDepth: 16,
    channels: 1,
});

const outputAudio = createWriteStream("mixed.pcm");

const firstAudio = createReadStream("firstAudio.pcm");
const secondAudio = createReadStream("secondAudio.pcm");

mixer.pipe(outputAudio);

firstAudio.pipe(firstInput);
secondAudio.pipe(secondInput);

More examples you can find here

API Documentation

You can view it in docs/README.md

Changelog

You can view it in CHANGELOG.md

License

MIT