mac-coreaudio-driver-manager

AudioManager.js is a Node.js addon library that allows you to monitor and control audio devices. It supports various functionalities such as starting/stopping volume monitoring, setting/getting volume levels, switching audio devices, and updating custom property in the driver. Only output devices are supported currently

Installation

You can install mac-coreaudio-driver-manager using npm:

npm install mac-coreaudio-driver-manager

API Usage

mac-coreaudio-driver-manager exports an AudioManager class that provides various methods to interact with audio devices.

import AudioManager from "mac-coreaudio-driver-manager";

OR;

const AudioManager = require("mac-coreaudio-driver-manager");

Class: AudioManager

Methods

• startVolumeMonitoring(volumeChangeCallback: (event: IVolumeChangeEvent) => void): void

  • Starts monitoring the volume of the audio devices.
  • volumeChangeCallback: A callback function that is called when a volume change event occurs.
  • throws an error if operation is not supported

• stopVolumeMonitoring(): void

  • Stops monitoring the volume of the audio devices.
  • throws an error if operation is not supported

• setVolume(deviceName: string, volume: number): void

  • Sets the volume of the audio device with the name deviceName to volume.
  • throws an error if operation is not supported

• getVolume(deviceName: string): {volume: number; decibels: number}

  • Returns the volume of the audio device with the name deviceName.
  • throws an error if operation is not supported

• getMuteState(deviceName: string) => boolean

  • Gets the mute state for the device with the deviceName
  • throws an error if operation is not supported

• setMuteState(deviceName: string, isMuted: boolean) => void

  • Sets the mute state for the device with the deviceName
  • throws an error if operation is not supported

• switchAudioDevice(deviceName: string): void

  • Switches the default audio device to the device with the name deviceName.
  • throws an error if operation is not supported

• getDefaultAudioDeviceName(): string

  • Returns the name of the default audio device. (Only output devices are returned currently)
  • throws an error if operation is not supported

• getAllAudioDeviceNames(): string[]

  • Returns the names of all audio devices.
  • throws an error if operation is not supported

• setVirtualDeviceCustomProperty(deviceName: string, value: string): void

  • Finds the first custom property of the virtual device deviceName and attempts to set its value to value.

Interfaces: IVolumeChangeEvent

export interface IVolumeChangeEvent {
	/**
	 * @description Name of the event.
	 */
	eventName: "volumeChange";
	/**
	 * @description Name of the audio device.
	 */
	device: string;
	/**
	 * @description Volume level of the audio device.
	 */
	volume: number;
	/**
	 * @description Decibel level of the audio device.
	 **/
	decibels?: number;
}

Example Usage

Here's a basic example of how to use the AudioManager class:

const AudioManager = require("AudioManager");

const AudioManager = new AudioManager();

// Start monitoring volume changes
AudioManager.startVolumeMonitoring((event) => {
	console.log(`Volume changed on device ${event.device}: ${event.volume}`);
});

// Set volume for a specific device
AudioManager.setVolume("Device A", 50);

// Get volume for a specific device
const volume = AudioManager.getVolume("Device A");
console.log(`Volume for Device A: ${volume}`);

// Switch to a different audio device
AudioManager.switchAudioDevice("Device B");

// Get the default audio device name
const defaultDevice = AudioManager.getDefaultAudioDeviceName();
console.log(`Default audio device: ${defaultDevice}`);

// Get all audio device names
const allDevices = AudioManager.getAllAudioDeviceNames();
console.log(`All audio devices: ${allDevices.join(", ")}`);

// Set a custom property for a virtual device
AudioManager.setVirtualDeviceCustomProperty("Virtual Device", "Custom Value");

// Stop monitoring volume changes
AudioManager.stopVolumeMonitoring();