The Ambient Sound Mode or Noise Canceling function changes unexpectedly, or a notification sound is heard.

IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.

When the Ambient Sound Control mode changes unexpectedly, check the following:

• The touch sensor is tapped inadvertently (for Truly Wireless headphones with touch sensors)
• Adaptive Sound Control is set to On

The touch sensor is tapped inadvertently (for Truly Wireless headphones with touch sensors)

This issue can be caused if the touch sensor is tapped inadvertently. If this happens frequently, you can disable the touch sensor by changing the function of the touch sensor to None Assigned using the Headphones Connect app.

The image below shows the Headphones Connect app screen, using the WF-1000XM3 as an example.

Adaptive Sound Control is set to On

When the Adaptive Sound Control is set to On, the Headphones Connect app detects where you are and what you are doing and adjusts the setting of the Noise Canceling or Ambient Sound Control. The notification sound tells you when the Noise Canceling or Ambient Sound Control setting change.

1. Follow these steps to turn Off the Adaptive Sound Control:
   1. In the Status tab, select (right arrow) at the right side of the Adaptive Sound Control menu.
      
   2. Turn off the Adaptive Sound Control.
      
2. Adjust the Noise Canceling or Ambient Sound Control manually:
   1. Turn on the Ambient Sound Control.

   2. Use Noise Canceling or change the Ambient Sound Control level.

      Note: The procedure differs depending on the model.

      Noise Canceling on the WF-1000XM4:
      

      For WF-1000XM3, move the slide bar to select Noise Canceling or change the Ambient Sound Control level.

      Noise Canceling is selected:
      

      Ambient Sound (level 9) is selected: