Audio Device switcher

An audio device switcher written in Batch and Cscript using SoundVolumeView.
Description: a collection of scripts that can set the default audio device, check what is the current default audio device, or switch between 2 devices.

Content

• Dependencies
• Installation
• Scripts
  • CheckDevice.bat
  • SwitchDevice.bat
  • PromptSwitch.bat
  • SwitchHeadset.bat
  • SwitchSpeakers.bat
• Usage

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Dependencies

1. SoundVolumeCommandLine v1.25 by Nir Sofer - Website.

The scripts could work with different versions, but that is the ones that was tested.

Installation

1. Download and unpack the dependency.
2. Download the desired scripts and variables.csv. The scripts are intentionally separate from each other, so you can download only the ones that you're going to use.

Tip

Place the files in the same folder as svcl.exe for ease of use.

3. Update variables.csv file so it fits your needs:

SoundVolumeView,<relative path to svcl.exe>
TIMEOUT,<how many seconds information popups wait before automatically closing>
COLUMN,<name of the column in SoundVolumeView that indicates your default device>
DEFAULT,<keyword that appears in COLUMN for your default device>
S_DEVICE,<name of 1st audio device>
H_DEVICE,<name of 2nd audio device>
S_VOLUME,<default volume for 1st device>
H_VOLUME,<default volume for 2nd device>

Note

Notice that the variables are currently set to switch between a Headset and Speakers, so the comments in the code and file names reflect that, but you could use these scripts to switch between any 2 devices.

Scripts

CheckDevice.bat

Checks which audio device (out of 2 options) is currently set as default and displays the information in a popup. If the current default device isn't one of the options an error message will be displayed.

Required variables:

• SoundVolumeView, TIMEOUT, COLUMN, DEFAULT, H_DEVICE, S_DEVICE

Script behaviour:

1. Reads variables from VARS_PATH (relative path to variables.csv, declared inside the script)
2. Uses SoundVolumeView to get the value of COLUMN for S_DEVICE and H_DEVICE.
3. Finds which device's state is set to the DEFAULT keyword.
4. Displays info popup for TIMEOUT seconds.

SwitchDevice.bat

Checks which audio device (out of 2 options) is currently set as default, sets the other device to default and displays the information in a popup. If the current default device isn't one of the options an error message will be displayed.

Required variables:

• SoundVolumeView, TIMEOUT, COLUMN, DEFAULT, H_DEVICE, S_DEVICE, H_VOLUME, S_VOLUME

Script behaviour:

1. Reads variables from VARS_PATH (relative path to variables.csv, declared inside the script)
2. Uses SoundVolumeView to get the value of COLUMN for S_DEVICE and H_DEVICE.
3. Finds which device's state is set to the DEFAULT keyword.
4. Uses SoundVolumeView to switch default device to the other device.
5. Uses SoundVolumeView to set default volume to the other device's default volume.
6. Displays info popup for TIMEOUT seconds.

PromptSwitch.bat

Checks which audio device (out of 2 options) is currently set as default, displays the information in a popup and asks user if should switch devices. If user selects "ok" in the prompt, sets the other device to default and displays the information in a popup. If the current default device isn't one of the options an error message will be displayed.

Required variables:

• SoundVolumeView, TIMEOUT, COLUMN, DEFAULT, H_DEVICE, S_DEVICE, H_VOLUME, S_VOLUME

Script behaviour:

1. Reads variables from VARS_PATH (relative path to variables.csv, declared inside the script)
2. Uses SoundVolumeView to get the value of COLUMN for S_DEVICE and H_DEVICE.
3. Finds which device's state is set to the DEFAULT keyword.
4. Displays prompt popup.
5. If selected "ok":
   • Uses SoundVolumeView to switch default device to the other device.
   • Uses SoundVolumeView to set default volume to the other device's default volume.
   • Displays info popup for TIMEOUT seconds.
6. If selected "cancel":
   • Exits.

SwitchHeadset.bat

Sets H_DEVICE audio device to default regardless of the current default device and displays the information in a popup.

Required variables:

• SoundVolumeView, TIMEOUT, H_DEVICE, H_VOLUME

Script behaviour:

1. Reads variables from VARS_PATH (relative path to variables.csv, declared inside the script)
2. Uses SoundVolumeView to switch default device to H_DEVICE.
3. Uses SoundVolumeView to set default volume to H_VOLUME.
4. Displays info popup for TIMEOUT seconds.

SwitchSpeakers.bat

Sets S_DEVICE audio device to default regardless of the current default device and displays the information in a popup.

Required variables:

• SoundVolumeView, TIMEOUT, S_DEVICE, S_VOLUME

Script behaviour:

1. Reads variables from VARS_PATH (relative path to variables.csv, declared inside the script)
2. Uses SoundVolumeView to switch default device to S_DEVICE.
3. Uses SoundVolumeView to set default volume to S_VOLUME.
4. Displays info popup for TIMEOUT seconds.

Usage

1. Run the desired script to switch/check your default audio device .

Tip

Create a shortcut to a script on your desktop, open its properties and change Run to Minimized, that'll enable it to run in the background and only display the end result. Run the script via the shortcut instead of running the file directly.

Tip

If your keyboard or mouse has programmable buttons you can set some to run your shortcut(s) to switch/check audio device without needing to go to your desktop.