24 SYSTEM CONFIGURATION
System Configuration
When no indicator appears at a speaker loca-
tion, that position is set for “none” or “no”
speaker.
Note: These icons are available only when mak-
ing setup changes in the semi-OSD mode.
As an example, in Figure 6 below, the left front
and right front speakers are set for “large,” the
center, left surround (LS) and right surround (RS)
speakers are set for small, and a subwoofer is
set, as shown by the box with the abbreviation
“LFE”, which stands for “low frequency effects”.
Figure 6
Adjustments for Other Inputs
After one input has been adjusted for surround
mode, digital input (if any) and speaker type go
back to the INPUT SETUP line on the
main AUDIO SETUP menu and enter the
settings for each input that you will use. In most
cases, only the digital input and surround mode
will be different from one input to the next, while
the speaker type will usually be the same and
may be quickly entered by entering the same
data used for the original input.
Settings independent from Inputs
selected
After the settings described above are made for
all input sources in your system, the following
settings, made with any input, will be effective
for all inputs selected.
Again to make these settings the best the full
OSD menu system should be used. From the
AUDIO SETUP menu (Figure 1) move the
cursor to the SURROUND SETUP line
and press the Set
8
button to bring up the
Sourround Setup menu.
Depending on the surround mode selected, you
will now proceed to change either the delay time
or the crossover frequency. For Dolby Digital and
Dolby Pro Logic, pressing the
⁄
/
¤
buttons
6
will take you to the delay settings, for all other
modes, it will take you to the Crossover
Frequency adjustment.
Delay Settings
If Dolby Digital or Dolby Pro Logic is selected, you
will need to adjust the delay time setting. Note
that the delay time is not adjustable for any
other modes.
Important Note: Once the delay time is set
with any input it will be effective with all other
inputs too. Moreover the surround delay time
setting must be made only for either the Dolby
Pro Logic or the Dolby Digital mode. The other
setting will be set automatically.
Due the different distances between the front
channel speakers and the listening position com-
pared to the surround speakers and the listening
position, the amount of time it takes for sound to
reach your ears from the front or surround speak-
ers is different. You may compensate for this dif-
ference through the use of the delay settings to
adjust the timing for the specific speaker place-
ment and acoustic conditions in your listening
room or home theater.
The factory setting is appropriate for most rooms,
but some installations create an uncommon dis-
tance between the front and surround speakers
that may cause the arrival of front channel
sounds to become disconnected from surround
channel sounds.
To resynchronize the front and surround chan-
nels, follow these steps:
1. Measure the distance from the listening/ view-
ing position to the front speakers in meters.
2. Measure the distance from the listening/ view-
ing position to the surround speakers.
3. Subtract the distance to the surround speakers
from the distance to the front speakers and multi-
ply the result by 3.
a.When setting the delay time for the Dolby
Digital surround modes, the optimal delay time
is the result of that subtraction. For example, if
the front speakers are 3 m away and the sur-
round speakers are 1 m away, the optimal
delay time is figured as (3–1)x3=6. Thus, in
this example, the delay time for Dolby Digital
should be set at six milliseconds.
b. When setting the delay time for the Pro Logic
mode, take the result of the subtraction and
add 15 to obtain the optimal delay time. For
example, if the front speakers are 3 m away
and the surround speakers are 1 m away, the
optimal delay time is figured as
(3–1)x3+15=21.Thus, in this example, the Pro
Logic delay should be set at twenty millisec-
onds.
NOTE: The DTS, Logic 7, Hall and Theater modes
use a fixed, nonadjustable delay time.
The Dolby Digital Mode also includes a separate
setting for the center channel delay mode, since
the discrete nature of these signals makes the
location of the center channel speaker more criti-
cal. To calculate the delay for the center channel,
measure the distance from the preferred listening
position in the center of the room to both the
center channel speaker and either the left or
right speaker.
If the distances are equal, no further adjustment
is required and the center delay should be set to
zero. If the distance to the front speakers is
greater than the distance to the center speaker,
you may wish to reposition the speakers by mov-
ing the front left and front right speakers closer to
the listening position or the center speaker further
away from the listening position.
If repositioning of the speakers is not possible,
adjust the center delay time, adding one milli-
second of center channel delay for every 30 cm
closer to the listening position the center speaker
is than the front speakers. For example, if the
front left and front right speakers are each 3 m
from the listening position and the center chan-
nel speaker is 2.4 m away, the delay is figured as
300 cm –240 cm=60 cm, suggesting an optimal
center delay of 2 milliseconds.
To set the delay time, continue within the main
AUDIO SETUP (Figure 1) menu. If the
system is not already at that point, press the
OSD button
I
to bring up the main audio
setup menu.To make the delay settings for the
Dolby Digital mode (this will include the Center
delay setting, and the surround delay for the Pro
Logic mode will be set automatically), press the
Set
8
button and select any input now that is
associated with a digital input and the Dolby
Digital surround mode, then return to the main
menu. Press the
¤
button
6
and then the Set
button
8
to bring up the surround setup
menu, now select the Dolby Digital mode, if not
so already and then press the
¤
button
6
once.
As the Dolby Digital mode is selected, the
›
cur-
sor will stop at the CENTER DELAY line.
Press the
‹
/
›
buttons
9
until the desired
figure appears in the display, using the number
calculated using the formula shown above. When
the CENTER DELAY is entered, press the
¤
button
6
once to move to the SURR
DELAY line so that the delay for the surround
speakers may be set. Press the
‹
/
›
buttons
9
until the desired figure appears in the
display, using the number calculated using the
formula shown above for the Dolby Digital sur-
round mode (item 3a). When the delay settings
are complete, press the
¤
button
6
once to
move to the next line.
To Next Page
Loading...
