From
a
PC
Displaying the data
1 Click [Show All Data].
The setup values for all the channels will be displayed.
Adjusting
the
Time
Correction
(TCR)
Because
of
the particular conditions inside the vehicle, there are major
differences in the distances between the different speakers and the
various listening positions. The proper time correction can be obtained
using the automatic time correction function
("Auto TCR"), but it is also
possible to calculate t
he optim
um
correction
val
ues and eliminate the
time error at the listening position using this function.
The unit for the time correction can be chosen to be either
"em" or
"inch." (Initial setting: "em")
• Calculation of time correction
1 Sit
in
the listening position (the driver's seat, for
example) and measure the distance (in meters)
between your head and the various speakers.
2 Calculate the difference
in
distance between the
farthest speaker and the other speakers.
L
=(distance
of
farthest
speaker)-
(distance
of
other
speakers)
3 Divide the distances calculated for the different
speakers by the speed of sound (343 m/s
temperature 20°C).
This
value
is
the
time
co
rr
ection
value
for
the
different
speakers.
28-EN
Concrete examples
1
Calculating
the
time
correction
value
for
the front left
speaker
on
the
diagram
below.
Conditions:
Distance between farthest speaker and
listening position: 2.25
m
{88-3/4")
Distance between front left speaker and listening position: 0.5 m
(20")
Calculation:
L
= 2.25 m
(88-3/4")-
0.5 m (20") = 1.75 m (68-3/4")
Compensation time
=
1.
75
.;.
343 x 1000 = 5.1 (ms)
In
other words, setting the time correction value for the front left
speaker
to
5.1
(ms) sets a virtual distance matching the
distance to the farthest speaker.
The sound
is
uneven because the distance
between the
listening position
and the different speakers
is
different.
The difference
in
the distance
between the front
left and rear
right speakers
is
1.
75 meters
(68-3/4").
Time correction eliminates the
difference between the time
required for the sound from the
different speakers to reach the
listening position.
Setting the time correction of the
front
left speaker to
5.1
ms
makes it
possible to coordinate
the distance from the
listening
position to the speaker.
• Entering the time correction
4 Click [TCR] for [Shortcut] tab
in
the main menu.
T
he
TCR
Setup
screen
is
displayed.
• When you click [Mobile Sound Manager]
on
the Function switching
tab, and then [TCR], the TCR Setup screen will also be displayed.
Refer
to
"Operating the Function Switching Tab" (page
7).
5 Click [ON] for "TCR"
in
the main menu.
• Choose OFF
to
disable the TCRfunction.
6 Click either [
B;
] or
[IIJ].
II
: B
oth
R
and
L
channels
are
set
at
the
same
value
(The
initial setting).
IIJ
:
Channe
ls R
and
L
can
be
set
independently.
• When you select
"I!J,"
a message
to
confirm which
of
the R or L
channel set up values is to be applied will be displayed. Click either
{LEFT]
or
[RIGHT].
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