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@coooookies/windows-audio-visualisation

v1.1.0

Published

A library for visualizing audio data from Windows speaker devices in Node.js.

Downloads

8

Readme

Node-Windows-Audio-Visualisation

Screenshot

This library allows developers to access audio visualisation data from the Windows using Node.js, providing a simple API to access this data. It is written in Rust and utilizes napi-rs to implement bindings with Node.js.

English | 简体中文

⚠️ Warning

node-windows-audio-visualisation only supports Windows.

🚀 Features

  • Access to the Windows audio visualisation data.
  • Support for both JavaScript and TypeScript.
  • Easy to use and integrate into existing Node.js applications.

Installation

npm i @coooookies/windows-audio-visualisation

🍊 Example

CommonJS Example ESModule Example TypeScript Example

Usage

Importing the library

// Typescript & ESModule
import { AudioMonitor, getDefaultOutputDevice, getAllOutputDevices } from '@coooookies/windows-audio-visualisation';

// CommonJS
const { AudioMonitor, getDefaultOutputDevice, getAllOutputDevices } = require('@coooookies/windows-audio-visualisation');

Gets all output devices

Gets all output devices on the system.

const devices = getAllOutputDevices(); // AudioDevice[]
// [
//   {
//     id: "{0.0.0.00000000}.{00000000-0000-0000-0000-000000000000}",
//     name: "Speakers (Realtek High Definition Audio)",
//     isDefault: true
//   },
//   {
//     ...
//   }
// ]

Gets the default output device

Gets the default output device on the system.

const device = getDefaultOutputDevice(); // AudioDevice | null
// {
//   id: "{0.0.0.00000000}.{00000000-0000-0000-0000-000000000000}",
//   name: "Speakers (Realtek High Definition Audio)",
//   isDefault: true
// },

Gets the spectrum data

Get the spectrum data, the spectrum data is composed of an array, the length of the array is the number of spectra, and each element in the array represents the loudness of the spectrum unit, with a value range of 0 to 1.

const audio = new AudioMonitor()

audio.setDevice("{0.0.0.00000000}.{00000000-0000-0000-0000-000000000000}") // Set the device id
audio.start(2048) // start monitoring with 2048 chunk size

// audio.stop() // stop monitoring

const bands = 8 // Number of bands
const spectrum = audio.getSpectrum(bands)
// [0.521, 0.821, 0.123, 0.456, 0.789, 0.234, 0.567, 0.890, ...]

setInterval(() => {
  console.log(audio.getSpectrum(bands))
}, 1e3 / 20)
// [0.521, 0.821, 0.123, 0.456, 0.789, 0.234, 0.567, 0.890, ...]
// [0.123, 0.456, 0.789, 0.234, 0.567, 0.890, 0.123, 0.456, ...]
// [0.789, 0.234, 0.567, 0.890, 0.123, 0.456, 0.789, 0.234, ...]
// ...

License

This project is licensed under the MIT License.