Toggle between Windows audio output devices from the command line!

Here's a simple PowerShell script to toggle between two Windows audio output devices using the AudioDeviceCmdlets module. This script can be run from the command line or even bound as a macro to your keyboard for quick switching.

The full GitHub project is at https://github.com/caendesilva/WindowsToggleAudioDevice

Installation

Install AudioDeviceCmdlets Module

1. Open PowerShell as Administrator:

   • Press Win + X and select Windows PowerShell (Admin) or search for PowerShell in the Start menu and right-click to run it as administrator.

2. Install the Module:
   

   Install-Module -Name AudioDeviceCmdlets -Repository PSGallery -Force

List All Audio Devices

1. List Audio Devices:

   Import-Module AudioDeviceCmdlets
   Get-AudioDevice -List

This command will list all audio devices with their IDs and names. Take note of the Index values as you will need them later.

Download ToggleAudioDevice.ps1

Next, download the ToggleAudioDevice.ps1 file from GitHub, preferably into your $PATH.

You can also just copy the following file contents, just note that it may not be up to date!

# https://github.com/caendesilva/WindowsToggleAudioDevice/blob/master/ToggleAudioDevice.ps1

Import-Module AudioDeviceCmdlets

# Define the indices of your devices
$device1Index = 3
$device2Index = 4

# Get the current default audio playback device index
$currentDeviceIndex = (Get-AudioDevice -Playback | Where-Object { $_.Default -eq "True" }).Index

Write-Host "Current device index: $currentDeviceIndex"

# Function to set the default audio playback device by index
function Set-DefaultAudioDeviceByIndex {
    param (
        [int]$deviceIndex
    )

    Set-AudioDevice -Index $deviceIndex
    Write-Host "Switched to device index $deviceIndex."
}

# Toggle the default audio playback device
if ($currentDeviceIndex -eq $device1Index) {
    Set-DefaultAudioDeviceByIndex -deviceIndex $device2Index
} else {
    Set-DefaultAudioDeviceByIndex -deviceIndex $device1Index
}

Configure ToggleAudioDevice.ps1

Now, open the ToggleAudioDevice.ps1 file and define the speaker indices found in the list above.

# Define the indices of your devices
$device1Index = 3 # Headphones
$device2Index = 4 # Speakers

Usage

Now you can run the .\ToggleAudioDevice.ps1 script from PowerShell, and even bind it as a macro to your keyboard!

This PowerShell script provides a quick and easy way to toggle between your preferred audio devices. Make sure to adjust the device indices in the script to match your specific setup, and you'll be switching audio outputs in no time!