How to use Samsung Galaxy smartphone system sound and Dolby Atmos features

System sound
Customize your device’s sounds for actions like tapping the screen and charging the
device. Options may vary by service provider.
◌ From Settings, tap Sounds and vibration > System sound for the following
options:

• System sound volume: Drag the slider to adjust the system volume.
• System sound theme: Choose a sound theme to use for touch interactions,
  charging, changing the sound mode, and Samsung Keyboard, and more.
• Touch interactions: Play tones when you touch or tap the screen to make
  selections.
• Dialing keypad: Play a tone when dialing numbers on the Phone keypad.
• Samsung keyboard: Play a sound when typing with the Samsung keyboard.
• Charging: Play a sound when a charger is connected.
• Screen lock/unlock: Play a sound when you lock or unlock the screen

Dolby Atmos
Enjoy Dolby Atmos quality when playing content that was specifically mixed for
Atmos. This feature may only be available with a headset connected.
◌ From Settings, tap Sounds and vibration > Sound quality and effects for the
following options:

• Dolby Atmos: Experience breakthrough audio that flows above and
  around you.