See also: How to Enable or Disable Mono Audio on Samsung Galaxy S3
In the same screen you can also find an option named sound balance which will allow you to adjust the sound balance to get the best balance between the left and right audio. This of course will expand your experience while using this phone to listen to the music or other sounds.
How to customize sound balance?
Below are the steps you need to do:
- Go to Settings.
- Tap Accessibility.
- Scroll down to the Hearing section, then tap Sound Balance.
- To adjust balance between left and right audio, slide the bar to the left or to the right.
- Tap OK button to save the changes.
By knowing the steps to adjust balance while you're in the stereo audio, now you can customize it according to your hearing, preferences and the sound sources. So, hope this helps :)