This script toggles the default audio output device between headphones and speakers on a Windows system.

SwitchAudio.ps1

# SwitchAudio.ps1
# This script toggles the default audio output device between headphones and speakers on a Windows system.

# Documentation:
# This script uses the AudioDeviceCmdlets PowerShell module to manage audio devices.
# It identifies the current default audio device and switches to the other specified device.
# Dependencies: AudioDeviceCmdlets module

# Step-by-step guide to set up and use this script:

# 1. Install AudioDeviceCmdlets Module
# Open PowerShell as an administrator and run the following command to install the AudioDeviceCmdlets module:
# Install-Module -Name AudioDeviceCmdlets -Scope CurrentUser -Force

# 2. Install BurntToast Module
# Run the following command to install the BurntToast module:
# Install-Module -Name BurntToast -Scope CurrentUser -Force

# 3. Discover Audio Devices
# Run the following command to list all audio devices and find the exact names of your headphone and speaker outputs:
# Get-AudioDevice -List

# 4. Update Device Names
# Replace "Realtek HD Audio 2nd output" and "Realtek High Definition Audio" with the names of your actual devices.

# Import necessary modules
Import-Module -Name AudioDeviceCmdlets
Import-Module -Name BurntToast

# Define the names of your audio devices
$headphones = "Realtek HD Audio 2nd output (Realtek(R) Audio)"  # Replace with your headphone device name
$speakers = "LG Ultra HD (NVIDIA High Definition Audio)"        # Replace with your speaker device name

# Function to set the default audio device
function Set-DefaultAudioDevice {
    param (
        [string]$deviceName
    )
    $ErrorActionPreference = "Stop"
    # Get the audio device matching the provided name
    $device = Get-AudioDevice -List | Where-Object { $_.Name -eq $deviceName }
    if ($device) {
        # Set the audio device as the default
        Set-AudioDevice -Index $device.Index
        # Show a toast notification
        New-BurntToastNotification -Text "Audio Device Switched", "Switched to $deviceName"
        Write-Output "Switched to $deviceName"
    } else {
        New-BurntToastNotification -Text "Audio Device Switch Error", "Device $deviceName not found"
        Write-Output "Device $deviceName not found"
    }
}

# Get the current default audio device
$currentDevice = (Get-AudioDevice -List | Where-Object { $_.Default -eq $true }).Name

# Toggle between headphones and speakers
if ($currentDevice -eq $headphones) {
    Set-DefaultAudioDevice -deviceName $speakers
} else {
    Set-DefaultAudioDevice -deviceName $headphones
}

# Running the Script:
# Save this script as SwitchAudio.ps1 in your scripts folder.
# To run the script, open PowerShell and navigate to the script directory, then execute:
# .\SwitchAudio.ps1

# Creating a Shortcut:
# To create a desktop shortcut that runs this script with a double-click:
# 1. Right-click on your desktop and select "New > Shortcut".
# 2. Enter the following location for the item:
#    powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\pchin\scripts\SwitchAudio.ps1"
# 3. Name your shortcut, such as "Switch Audio".
# 4. Click "Finish".

# This setup allows you to switch between your headphone and speaker outputs quickly without manually navigating through system settings.