Use preset equalisers to enhance your phone's speaker sound or apply sound profiles to your headphones or other connected device based on the type of media playing.
Smart audio automatically chooses the best settings for the media you're listening to, or you can set and customise sound profiles for the loudspeaker and connected devices.
You can select a preset sound profile for your loudspeaker, headphones or other connected device and your phone will remember the next time you connect it.
Open Quick settings, then press and hold 
Or, open the Dolby Atmos app 
Choose how to adjust sound:
To customise a selected sound profile, next to the profile name tap 



To turn Dolby Atmos off for headphones or another connected device, open quick settings and tap 
To turn it off when you're listening through the loudspeaker:

