4.
To customize a selected sound profile, next to the profile name touch  , then:
•
Choose an equalizer preset to enhance treble, bass, or vocals.
•
To get a surround sound experience, turn Surround virtualizer on.
•
To keep the same volume level when you switch between audio sources, turn Volume leveler on.
•
To learn more about these settings, touch   > Help.
•
To revert a profile to its original settings, touch   > Reset.
•
To revert to all original settings, on the main Dolby Atmos screen, touch Settings >   > Reset 
settings.
Turn Dolby Atmos off
To turn Dolby Atmos off for headphones or another connected device, open quick settings and touch  .
To turn it off when you're listening through the loudspeaker:
1. Go to Settings > Sound & vibration > Dolby Atmos.
2.
Touch   > About.
3. Tap the version listed three times to add the on/off switch.
4.
Turn it off  .
Use immersive sound
In addition to Dolby Atmos, you can get a deeper and wider sound experience for content that isn’t 
supported by Dolby Atmos. When you’re listening to music, watching movies, and playing games, use 
Spatial Sound.
1. Go to Settings > Sound & vibration > Spatial Sound.
2.
Turn it on   or off  .
Silence calls & notifications
When you're busy, use Do Not Disturb to mute ringtones for incoming calls, stop vibration, and block 
notifications.
Quickly turn Do Not Disturb on or off
Turn it on 
1.
Open quick settings and touch  .
You'll see   in the status bar when Do Not Disturb is on.
Settings : Sound & vibration
155