The A VR-3802
isequipped
with adigital sgnal processing
c4rcult
that l ets you play p rogram
sources
inthe
surround
mode toachieve
the same sense ofpresence
as inamovie theater
Dolby Surround
(1}
Dolby Digital (DoIby Surround
AC-3)
Dolby Digital s the multi-channel
digital signal format developed
by Dolby Laboratories
Dolby D gital consists
of up to "51"
channels _ front left, front right, center, surround
left, surround
right,
and an add tional channel exclusively
reserved
for additional
deep bass sound effects
(the Low Frequency
Effects - LFE - channel, also called the "t " channel, containing
bass frequencies
of up to 120 Hz)
Unlike the analog Dolby Pro Logc format,
Dolby Digi[al's main channels can all contain
full range sound
information,
from the lowest bass, up to the highest frequencies
- 22 kHz The signals within
each channel
are d stinct from the others, allowing
p_npoint sound
hag ng, and Dolby Digital offers tremendous
dynamic
range from the most powerful
sound effects to the quietest,
softest
sounds, free from noise and distortion
Dolby
Digital
and
Dolby
Pro Logic
Conlpa [so/ of home st,round
Doloy Digital
Doloy Pro Logic
systems
NO recorded charlr/es (e e ¥_e/ts)
51 ch
2 ch
NO playbackchanr/e s
51 ch
4 ch
Playback charlr/e s (max}
L, R C, SL SR SW
L, R C, S (SW recommended}
D gital discrete processng Dolby Digital rAG3)
Analog matrx processing Dolby
Audo processi/g
encoding/decoding
Surrou/d
High frequency playback lirnt of
20 kHz
7 kHz
su round cha/he
•
Dolby Digital compatible
media and pIayback
methods
Marks indicat ng Dolby Digital cornpat bilky:
Ilrl[_]
and iTl_]_]
=I,ITAL
m,ZOImlTAL
The following
are general examples
Also refer to the player's operating instructions
Media
Dolby Dgtal
output iacks
Playback method
(reference
page)
Coaxa
Doby
Digita
RF output jack
Set the i/put
mode to "AUTO
LD (VDP)
_ I
(Page 23}
DVD
Optical
or coaxial d g[tal output
Set the i/put
mode to "AUTO
(same as for PCM)
_
2
(Page 23}
Others
Optical
or coaxial d g[tal output
Set the i/put
mode to "AUTO
(satellite
broadcasts,
CATV etc}
(same as for PCM}
(Page 23}
1
Please use a commercially
available adapter when connecting
the Dolby Digital RF (AC-3RF) output jack
of the LD player to the digital input iack
Please refeE to the instruction
manual of the adapter when making connection
2
Some
DVD digital
outputs
have the function
of switching
the Dolby
Digital signal
output
method
between
"bit stream"
and "(conver_ to) PCM"
When
playing in Dolby Digital surround
on the AVR-
3802, switch
the DVD player's output
mode to "bit stream"
In some cases players are equipped
with
both "bit stream + RCM" and "PCM only" digital outputs
In this case connect the "bit stream + PCM r,
Jacks to the AVR-3802
(2)
Dolby Pro Logic ]1
•
Dolby Pro-Logic
]] is a new
multFchannel
playback
format
developed
by Dolby
Laboratories
using
feedback
logic steering technology
and offering
improvements
over conventional
Dolby Pro Logic circuits
•
Dolby Pro Logic l] can be used to decode
not only sources
recorded
in Dolby Surround
(_)
but also
regular stereo sources into five channels (front left, front rightr centel, surround
left and surround right) to
achieve surround
sound
• Whereas with conventional
Dolby Pro Logc the surround
channel playback frequency
band was limited,
Dolby Pro Logic R offers a wider
band range (2g Hz to 20 kHz or greater)
In addition,
the surround
channels were monaural (the surround
left and right channels were the same) with previous
Dolby Pro
Logic, but Dolby Pro Logc ]1 they are played as stereo signals
• Various parameters
can be set according to the type of source and the contents,
so it is possible to
achieve optimum
decoding
(see page 27)
Sources recorded
in Dolby Surround
These are sources m which three or more channels of surround have been recorded as two channels of
signals using Dolby Surround encoding technology
Dolby Surround
is used for the sound tracks of movies recorded
on DVDs, LDs and video cassettes
to
be played on stereo VCRs, as well as for the stereo broadcast signals of FM radio, TV, satellite broadcasts
and cable ]_/
Decodng
these
signals with
Dolby Pro Logic
makes
t possible
to achieve
muki-channel
surround
playback
The signals can also be played on ordinary
stereo equipment,
in which case they provide
normal stereo sound
There
are two
types
of DVD
Dolby
surround
recording
signals
,1
2-channe
PCM
stereo
signals
,2;
2-channe
Dolby
Digtal
signals
When either of these signals is input to the AVR-3802, the surround
mode is automatically
set to Dolby
Pro Logic ][ when the "DOLBY/DTS
SURROUND"
mode is selected
•
Sources recorded
in Dolby Surround
are indicated with the logo mark shown below,
Dolby Surround
support mark:
nn_]
Manufactured
under license from Dolby Laboratories
"Dolby",
"Pro Logic"
and the double-D symbol are trademarks
of Dolby Laboratories
Confident
al unpublished
works, @1992_1999 Dolby Laboratories
All rights reserved
39