Windows 11 may automatically adjust volume due to features like Communication Devices and Loudness Equalization. 1. The Communication Devices setting lowers other sounds during calls; disable it via Settings > System > Sound > App audio quality. 2. Loudness Equalization normalizes audio levels; turn it off in the Enhancements tab of your audio device properties. 3. Third-party apps, drivers, or updates can also cause changes—check recent software updates, update drivers, or disable enhancements in apps like Dolby Access. Adjusting these settings allows you to maintain manual control over your system's volume.
If you're using Windows 11 and have noticed that the system seems to adjust your volume on its own, you’re not alone. This behavior can be confusing — especially if you’ve manually set the level just the way you like it. The good news is, there’s usually a reason behind it, and more importantly, there are ways to stop it.

Communication Devices and Automatic Volume Adjustment
One of the most common causes of automatic volume changes in Windows 11 is the “Communication Devices” feature. When this setting is enabled (and it often is by default), Windows will lower the volume of other sounds when it detects communication apps like Zoom, Teams, or Skype are active.
Here's how to check and disable it:

- Open Settings
- Go to System > Sound
- Scroll down and click on "Sound settings" under "Advanced sound options"
- Click on "App audio quality"
- Uncheck the box that says "Reduce other sounds when this device is used for communications"
This option is meant to help reduce background noise during calls, but if you don’t want your media or game audio ducking every time you join a call, turning this off makes sense.
Audio Enhancements and Loudness Equalization
Another possible culprit is audio enhancements, particularly the Loudness Equalization feature. This setting tries to normalize volume levels between different audio sources, which can sometimes result in unexpected changes.

To disable this:
- Right-click the speaker icon in the taskbar and select Sounds or "Sounds and Devices"
- Go to the Playback tab
- Double-click your default audio device
- In the new window, go to the Enhancements tab
- Check the box for Disable all enhancements, or specifically uncheck Loudness Equalization
Some people find this helpful, especially if they listen to content with inconsistent volume levels, but if you prefer full manual control, it’s better to turn it off.
Third-party Apps and System Updates
Sometimes, third-party software such as audio drivers (like Realtek or Dolby), gaming platforms (like Steam), or even recent Windows updates can interfere with volume settings. It’s worth checking:
- If any recent updates were installed around the time the issue started
- Whether uninstalling or updating your audio driver helps
- If disabling enhancements from third-party audio software (like Dolby Access) resolves the problem
Also, some apps may have their own volume normalization or ducking features, so it’s a good idea to review settings within those applications as well.
Basically, Windows 11 automatically adjusts volume for usability reasons — mainly to improve call clarity and balance audio levels. But if you’d rather keep full control, adjusting these settings should give you back that consistency.
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