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Dolby Surround
Dolby Surround modes
Press the Dolby Surround button.
PRO-Logic is selected, and the playback sound has the Dolby
Surround effect.
To cancel Dolby Surround mode
Press the Dolby Surround button repeatedly until OFF is
displayed.
When playing DVD, if an Audio is Dolby Digital, it can not be
operated.
When being connected to headphones and microphone, this
function cannot be operated.
Additional Dolby Surround modes
In addition to the PRO-Logic mode, this unit is also equipped with the
3 STEREO modes.
PRO-Logic : Use this mode when rear speakers are connected. The
center channel signals are output through the left and right speakers.
3 STEREO : Use this mode when no rear speakers are connected. This
mode reproduces rear sounds through the front speakers.
PRO-Logic
3 STEREO
OFF
Depending on the sound source or listening conditions, a surround
effect may not be obtained even when the Dolby Surround is on.
The full Dolby Surround effect cannot be obtained when using soft-
ware without
mark. In this case, use the DSP
DOLBY SURROUND
P R O
L O G I C
system instead.
22
Dolby Surround
Adjusting Speaker Level Balance
The unit is equipped with a built-in test signal generator called a
noise sequencer which outputs a noise signal that 'travels' from
channel to channel. This enables the simple adjustment of sound
levels, to achieve, at the listening position, the same apparent
loudness from each channel. Use the remote control.
1
Press the Dolby Surround button.
Result: "
PRO-LOGIC" appears on the displayed.
2
Press the Test Tone button.
A noise signal is sent to each channel in turn in the following
sequence.
L
CNTR
R
REAR
(L : Left Speaker, CNTR : Center Speaker,
R : Right Speaker, REAR : Rear Speaker)
3
Press the Test Tone button again to stop the noise signal.
4
To change the sound levels or delay time after adjusting the balance
with the noise sequencer.
Press the Sound Edit button.
While L, R, CNTR, REAR is displayed, press the UP/DOWN
(
/
) button.
Press the Speaker Mode button.
While CNTR, REAR, DELAY TIME is displayed, press the
UP/DOWN (
) button.
/
– CNTR : Large/Small/None
– REAR : USE/None
– DELAY TIME : 15/20/25/30 MS
When the Dolby surround system is on, this function can be
operated.
1
4
4
4
4
4
2,3
Dolby Surround
(Cont'd)
To set the delay time
When 5.1 Channel Surround Sound is played, you can enjoy the
best sound if the distance between you and each speaker is the
same. You can set Delay Time in the Center/Rear Speaker to
customize the sound to the acoustics of your room.
Setting Center Speaker
If the distance of Dc is equal to or longer than the distance of Df in
the figure, set the mode as 0ms.
Otherwise, change the setting according to the table on the table.
Setting Rear Speakers
If the distance of Df is equal to the distance of Ds in the figure, set
the mode as 0ms.
Otherwise, change the setting according to the table.
(A)=Df-Dc
Distance of (A)
Value(ms)
50
1.3
100
2.6
400
3.9
200
5.3
(B)=Df-Ds
Distance of (B)
Value(ms)
200
5.3
400
10.6
600
15.9
Dc: Distance from center speaker to
listening position
Df: Distance from front speakers to
listening position
Ds: Distance from rear speakers to
listening position
Ideal Center Speaker Position
Dc
Df
Ds
Ideal Rear Speaker Position
Arrange all speakers within a circle as
shown in the figure.
Manufactured under license from Dolby Laboratories. "Dolby,"
"Pro Logic," and the double-D symbol are trademarks of Dolby
Laboratories. Confidential Unpublished Works. ©1992-1997
Dolby Laboratories, Inc. All rights reserved.
Dolby Surround
(Cont'd)
Speaker Setting Methods
Front Speakers
Set the front speakers so that their tweeters (high-range) are aligned
at about ear level and at a horizontal angle of 45° to the prime
listening position.
Center Speaker
Ideally the center speaker should be positioned with its top surface
flush with the front speakers. However, you may place the speaker
either on top or near the bottom of your TV set.
Rear Speakers
Set the rear speakers further back parallel to the walls, at 60 to 90
centimeters (2 to 3 feet) above prime listening position ear level.
If the space behind the listening position is insufficient (i.e., too
close to the wall), place the rear speakers facing each other on
either side.
Subwoofer Speaker
Place the subwoofer at any convenient location within the vicinity of
the listening position.
Manufactured under license from Digital Theater System,s Inc.
US Pat. No. 5,451,942 and other world-wide patents issued
and pending. "DTS" and "DTS Digital Surround" are
trademarks of Digital Theater Systems, Inc. ©1996 Digital
Theater Systems, Inc. All rights reserved.
23
GB
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