Enhancing the sound
To improve the sound quality using the Equalizer
When a song is playing in the "WALKMAN" application, tap .
Tap Settings > Sound effects > Sound enhancements.
To adjust the sound manually, drag the frequency band buttons up or down. To
adjust the sound automatically, tap
and select a style.
To turn on the surround sound
When the "WALKMAN" application is open, tap .
Tap Settings > Sound effects > Sound enhancements > Settings > Surround
Select a setting, then tap OK to confirm.