Video Conference Mute (Preview)

Important

This is a preview feature and only included in the pre-release version of PowerToys. Running this pre-release requires Windows 10 version 1903 (build 18362) or later.

Quickly mute your microphone (audio) and turn off your camera (video) with a single keystroke while on a conference call, regardless of what application has focus on your computer.

Usage

The default shortcuts to use Video Conference Mute are:

  • ⊞ Win+N to toggle both Audio and Video at the same time
  • ⊞ Win+Shift+A to toggle microphone
  • ⊞ Win+Shift+O to toggle video

Audio and Video mute notification screenshot

When using the microphone and/or camera toggle shortcut keys, you will see a small toolbar letting you know whether your Microphone and Camera are set to on, off, or not in use. You can set the position of this toolbar in the Video Conference Mute tab of PowerToys settings.

Settings

The Video Conference Mute tab in PowerToys settings provides the following options:

Setting Description
Shortcuts Change the shortcut key used to mute your microphone, camera, or both combined
Selected microphone Select the microphone on your machine that this utility will use
Selected camera Select the camera on your machine that this utility will use
Camera overlay image Select an image to that will be used as a placeholder when your camera is turned off. By default, a black screen will appear when your camera is turned off with this utility.
Toolbar Set the position where the Microphone On, Camera On toolbar displays when toggled (default: top right corner)
Show toolbar on Select whether you prefer the toolbar to be displayed on the main monitor only (default) or on all monitors
Hide toolbar when both camera and microphone are unmuted A checkbox is available to toggle this option

Video Conference Mute options in PowerToys settings

How this works under the hood

Applications interact with audio and video in different ways. If a camera stops working, the application using it tends not to recover until the API does a full reset. To toggle the global privacy camera on and off while using the camera in an application, typically it will crash and not recover.

So, how does PowerToys handle this so you can keep streaming?

  • Audio: PowerToys uses the global microphone mute API in Windows. Apps should recover when this is toggled on and off.
  • Video: PowerToys has a virtual driver for the camera. The video is routed through the driver and then to the application. Selecting the Video Conference Mute shortcut key stops video from streaming, but the application still thinks it is receiving video. The video is just replaced with black or the image placeholder you've saved in the settings.

Debug the camera driver

To debug the camera driver, open this file on your machine: C:\Windows\ServiceProfiles\LocalService\AppData\Local\Temp\PowerToysVideoConference.log

You can also create an empty PowerToysVideoConferenceVerbose.flag in the same directory to enable verbose logging mode in the driver.

Known issues

To view all of the known issues currently open on the Video Conference Mute utility, see PowerToys tracking issue #6246 on GitHub. The PowerToys development team and contributor community are actively working toward resolving these issues and plans to keep the utility in pre-release until essential issues are resolved.