Performing Time Correction Automatically (Precision Automated Time Correction) - Alpine Multimedia Manager PXA-H900 Owner's Manual

Automatic Adjustments
VOL
VOL
Performing time correction
automatically
(Precision Automated Time
Correction)
Due to the particular conditions inside the vehicle, there is a
major difference between the distances of the various speakers
and the listening position. This function uses the included
measurement microphone to automatically measure and analyze
the distances between the speakers and the listening position and
perform the optimum time correction.
1
Before starting the automatic adjustment proce-
dure, park the vehicle in a quiet place to avoid the
effects of external sounds.
2
Set the vehicle's key to the ACC position.
Do not start the engine. The vibrations may
make it impossible to achieve the proper adjust-
ment values.
20
-
EN
AUTO TCR
• Preparations must be made
before performing the automatic
adjustment procedure. Refer to
page 14.
• The PXA-H900's automatic
adjustments take into account the
delay time between the time at
which the signals are input to the
speakers until the sound is
output. This does not correspond
to the actual distance.
• With the automatic adjustments,
the average delay time within the
speakers' playable frequency
range is measured. Measure-
ments may not be possible when
using special speakers or in
special playback environments.
If this is the case, perform the
adjustments manually.