GAC GA4 Manual page 200

4. Operating System and Equipment
Sound Field
- Adjust the sound field position via the touch
screen.
- Click "Reset" to restore the default values for
resetting.
194
Power-on Volume
- Constant: The power-on volume remains the
same as that before the last power-off.
- Adaptive: Whatever the volume is before the
last power-off, the volume of the system is
defaulted to be 15 at the time of power-on
after powering off.
- After restoring factory settings, it defaults to be
"Adaptive".
Speed Dependent Volume Control
Speed dependent volume control can select off,
low, medium, high, which
amplitude of sound under the influence of the
acceleration or deceleration.
- After restoring factory settings, it defaults to be
"Off".
- The output volume performs
adjustment along with the speed change. The
state table of volume along with speed is as
follows:
Status Volume Change
The sound will not be changed with the
OFF
speed
The sound will be changed with the
Low
speed at a low degree
The sound will be changed with the
Medium
speed at a medium degree
The sound will be changed with the
High
speed at a great degree
adjusts the
automatic