Subaru STARLINK Manual page 122

BASIC OPERATION
VOCAL IMAGE CONTROL SETTINGS*
*: This setting can be made depending on the connected amplifier type.
Extract only vocal sound from whole sound and adjust volume
balance of it.
1.
Display the "Sound Customization" screen. (→P.120)
2.
Vocal Image Control
Select
122
(Vocal Image Control).
3.
Adjust to the desired position.
Select the icon to adjust vocal image control.
Select to set the virtual stage enhancer function.
This function adjusts the sounds to the high realistic
surround sound by enhancing the vocals. When this setting
is on, the front and rear setting of "Vocal Image Control"
cannot be set.
Select to reset the vocal image control settings.