How to play audio in mono in Android 11

1. To access the Accessibility features on your Android device open the Settings app .
2. In the Settings app, scroll down and select Accessibility from the list.
   
3. On the Accessibility screen, scroll down to the Audio & on-screen text section and set the toggle switch for Mono audio to On.
   

Note: we have written these instructions for devices running the standard version of the Android operating system. You may find some minor presentation differences if the manufacturer has customised the theme.