Acura TL 2007 Owner's Manual page 144

Audio System (Models without Navigation System)
SVC Adjusts the volume level
based on the vehicle speed.
Speed-sensitive Volume
Compensation (SVC)
The SVC mode controls the volume
based on vehicle speed. The faster
you go, the louder the audio volume
becomes. As you slow down, the
audio volume decreases.
The SVC has four modes; SVC OFF,
SVC LOW, SVC MID, and SVC
HIGH. Turn the TUNE knob to
adjust the setting to your liking. If
you feel the sound is too loud,
choose low. If you feel the sound is
too quiet, choose high.
138
This function is set to MID as the
default setting when the vehicle
leaves the factory.
Dolby
Dolby PL (Prologic) II
PL (Prologic) II signal processing
creates multi-channel surround
sound from the audio signal
recorded with two channel stereo
sources. Dolby prologic II can only
activate when using the CD (CD-DA,
MP3/WMA), XM radio, and AUX
audio modes. When it activates,
''DPL II'' is shown on the upper
display.
Manufactured under license from
Dolby Laboratories. ''Dolby'',
''ProLogic'', and the double-D symbol
are trademarks of Dolby
Laboratories.
Audio System Lighting
You can use the instrument panel
brightness control buttons to adjust
the illumination of the audio system
(see page 89 ). The audio system
illuminates when the parking lights
are on, even if the radio is off.