Denon AVR-2803S Operating Instructions - Page 68

Dolby Surround, Logic, Dolby, Digital, and Dolby Pro Logic, compatible, media, and playback, methods

Page 68 highlights

The AVR-2803/983 is equipped with a digital signal processing circuit that lets you play program sources in the surround mode to achieve the same sense of presence as in a movie theater. Dolby Surround (1) Dolby Digital Dolby Digital is the multi-channel digital signal format developed by Dolby Laboratories. Dolby Digital consists of up to "5.1" channels - front left, front right, center, surround left, surround right, and an additional channel exclusively reserved for additional deep bass sound effects {the Low Frequency Effects - LFE - channel, also called the ".1" channel, containing bass frequencies of up to 120 Hz). Unlike the analog Dolby Pro Logic format, Doiby Digital'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 distinct from the others, allowing pinpoint sound imaging, 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 Comparison of home surround systems No recorded channels (elements) No playback channels Playback channels (max) Dolby Digital 51 ch 51 ch L, R, C, SL, SR, SW Do]by Pro Logic 2 ch 4 ch L, R, C, S {SW - recommended} Audio processing DDioglibtayl Ddiigscgraelteencporodcinegs/sdinegcoding Analog matrix processing Do]by Surround High frequency playback limit of surround channel 20 kHz 7 kHz • Dolby Digital compatible media and playback methods Marks indicating Dolby Digital compatibility: I'_n_ . DI G i'r&l. The following are general examples. Also refer to the player's operating instructions. Media Dolby Digital output jacks LD {VDP) Coaxial Dolby Digital RF output iack _ 1 Playback method (reference page) Set the input mode to "AUTO" {Page 42) DVD Optical or coaxial digital output (same as for PCM) _ 2 Set the input mode to "AUTO" {Page 42) Others {satellite broadcasts, CATV, etc) Optical or coaxial digital output (same as for PCM) Set the input mode to "AUTO" {Page 42) 1 Please use a commercially available adapter when connecting the Dolby Digital RF output jack of the LD player to the digital input jack. Please refer 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 "(convert to) PCM". When playing in Dolby Digital surround on the AVR-2803/983, switch the DVD player's output mode to "bit stream". In some cases players are equipped with both "bit stream + PCM" and "PCM only" digital outputs. In this case connect the "bit stream + PCM" jacks to the AVR-2803/983. (2) Dolby Pro Logic I1 • Dolby Pro Logic II is a new multi-channel playback format developed by Dolby Laboratories using feedback logic steering technology and offering improvements over conventional Dolby Pro Logic circuits. • Dolby Pro Logic I] can be used to decode not only sources recorded in Do]by Surround (-_ ) but also regular stereo sources into five channels (front left, front right, center, surround left and surround right) to achieve surround sound. • Whereas with conventional Dolby Pro Logic the surround channel playback frequency band was limited, Dolby Pro Logic I1 offers a wider band range (20 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 Logic II 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 5O). Sources recorded in Dolby Surround These are sources in 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 TV. Decoding these signals with Dolby Pro Logic ]I makes it possible to achieve multi-channel surround playback. The signals can also be played on ordinary stereo equipment, in which case they provide normal stereo sound. 68

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The AVR-2803/983
is equipped
with a digital signal processing
circuit that lets you play program
sources in the surround
mode to achieve the same
sense of presence
as in a movie
theater.
Dolby Surround
(1)
Dolby
Digital
Dolby
Digital
is the multi-channel
digital signal format
developed
by Dolby
Laboratories.
Dolby Digital consists
of up to
"5.1"
channels
-
front
left, front
right, center, surround
left, surround
right,
and an additional
channel
exclusively
reserved
for additional
deep
bass sound
effects
{the Low
Frequency
Effects
-
LFE
-
channel,
also called
the
".1"
channel,
containing
bass
frequencies
of up to
120 Hz).
Unlike the analog Dolby
Pro
Logic
format,
Doiby Digital'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 distinct
from the others,
allowing
pinpoint
sound imaging,
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
Comparison
of home
surround
systems
Dolby
Digital
Do]by Pro Logic
No
recorded
channels
(elements)
51
ch
2 ch
No
playback channels
51
ch
4 ch
Playback
channels
(max)
L, R, C, SL, SR, SW
L, R, C, S {SW - recommended}
Digital
discrete
processing
Analog
matrix
processing
Do]by Surround
Audio
processing
Dolby
Diggal encoding/decoding
High frequency
playback
limit
of surround
20 kHz
7 kHz
channel
Dolby
Digital
compatible
media
and playback
methods
Marks
indicating
Dolby
Digital compatibility:
I'_n_
.
DI
G i'r&l.
The
following
are general
examples.
Also
refer
to the
player's
operating
instructions.
Media
Dolby
Digital
output
jacks
Playback
method
(reference
page)
Set the
input
mode to "AUTO"
LD {VDP)
Coaxial Dolby
Digital
RF output
iack
_1
{Page 42)
DVD
Optical
or coaxial
digital output
Set the
input
mode to "AUTO"
(same
as for PCM)
_2
{Page 42)
Others
Optical
or coaxial
digital output
Set the
input
mode to "AUTO"
{satellite
broadcasts,
CATV, etc)
(same
as for PCM)
{Page 42)
1 Please use a commercially
available
adapter
when
connecting
the Dolby
Digital
RF output
jack of the
LD player to the digital
input jack.
Please refer 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 "(convert
to)
PCM". When
playing in Dolby Digital surround
on the AVR-2803/983,
switch
the DVD player's
output
mode to "bit
stream".
In some cases
players
are equipped
with
both
"bit
stream
+ PCM"
and "PCM
only"
digital
outputs.
In this case connect
the
"bit
stream
+ PCM"
jacks
to the AVR-2803/983.
(2)
Dolby Pro
Logic
I1
Dolby
Pro Logic
II
is a new
multi-channel
playback
format
developed
by Dolby
Laboratories
using
feedback
logic steering
technology
and
offering
improvements
over conventional
Dolby
Pro Logic circuits.
Dolby
Pro Logic
I]
can be used to decode
not only sources
recorded
in Do]by Surround
(-_ ) but also regular stereo
sources
into five channels
(front
left, front
right, center,
surround
left and surround
right) to achieve
surround
sound.
Whereas
with
conventional
Dolby
Pro Logic the surround
channel
playback
frequency
band was
limited,
Dolby
Pro Logic
I1 offers
a wider
band range
(20 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 Logic II 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
5O).
Sources
recorded
in Dolby
Surround
These
are sources
in 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 TV.
Decoding
these
signals
with
Dolby
Pro Logic
]I
makes
it possible
to achieve
multi-channel
surround
playback.
The signals
can also be
played
on ordinary
stereo
equipment,
in which
case they provide
normal
stereo
sound.
68