Dolby Pro Logic; Dts Digital Surround - Denon AVC-A11SR Bedienungsanleitung

ENGLISH
Surround
The AVC-A11SR 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.
(1) Dolby Surround
q Dolby Digital (Dolby Surround AC-3)
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, Dolby 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
2
Comparison of home surround
systems
No. recorded channels (elements)
No. playback channels
Playback channels (max )
Digital discrete processing Dolby Digital (AC-3)
Audio processing
encoding/decoding
High frequency playback limit of
surround channel
2 Dolby Digital compatible media and playback methods
Marks indicating Dolby Digital compatibility:
The following are general examples. Also refer to the player's operating instructions.
Media
LD (VDP)
DVD
Others
(satellite broadcasts, CATV, etc.)
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 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 AVC-
A11SR, 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 AVC-A11SR.
38
Dolby Digital

Dolby Pro Logic

5.1 ch
5.1 ch
L, R, C, SL, SR, SW L, R, C, S (SW - recommended)
Analog matrix processing Dolby
Surround
20 kHz
and .
Dolby Digital output jacks Playback method (reference page)
Coaxial Dolby Digital RF output jack
Set the input mode to "AUTO".
1
Optical or coaxial digital output
Set the input mode to "AUTO".
(same as for PCM)
2
Optical or coaxial digital output Set the input mode to "AUTO".
(same as for PCM)
w Dolby Pro Logic
• Dolby Pro-Logic
feedback logic steering technology and offering improvements over conventional Dolby Pro Logic
circuits.
• Dolby Pro Logic
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
channels were monaural (the surround left and right channels were the same) with previous Dolby Pro
Logic, but Dolby Pro Logic
• Various parameters can be set according to the type of source and the contents, so it is possible to
achieve optimum decoding (see page 31).
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 makes it possible to achieve multi-channel surround
playback. The signals can also be played on ordinary stereo equipment, in which case they provide
2 ch
normal stereo sound.
4 ch
There are two types of DVD Dolby surround recording signals.
q 2-channel PCM stereo signals
w 2-channel Dolby Digital signals
When either of these signals is input to the AVC-A11SR, the surround mode is automatically set to
Dolby Pro Logic
7 kHz
2 Sources recorded in Dolby Surround are indicated with the logo mark shown below.
Dolby Surround support mark:
Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories.
Confidential unpublished works, ©1992-1999 Dolby Laboratories. All rights reserved.
(Page 23)

(2) DTS Digital Surround

DTS Digital Surround (also called simply DTS) is a multi-channel digital signal format developed by Digital
Theater Systems.
(Page 23)
DTS offers the same "5.1" playback channels as Dolby Digital (front left, front right and center, surround left
and surround right) as well as the stereo 2-channel mode. The signals for the different channels are fully
independent, eliminating the risk of deterioration of sound quality due to interference between signals,
(Page 23)
crosstalk, etc.
DTS features a relatively higher bit rate as compared to Dolby Digital (1234 kbps for CDs and LDs, 1536 kbps
for DVDs) so it operates with a relatively low compression rate. Because of this the amount of data is great,
and when DTS playback is used in movie theaters, a separate CD-ROM synchronized with the film is played.
With LDs and DVDs, there is of course no need for an extra disc; the pictures and sound can be recorded
simultaneously on the same disc, so the discs can be handled in the same way as discs with other formats.
There are also music CDs recorded in DTS. These CDs include 5.1-channel surround signals (compared to
two channels on current CDs). They do not include picture data, but they offer surround playback on CD
players that are equipped with digital outputs (PCM type digital output required).
DTS surround track playback offers the same intricate, grand sound as in a movie theater, right in your own
listening room.
2 DTS compatible media and playback methods
Marks indicating DTS compatibility:
The following are general examples. Also refer to the player's operating instructions.
II
II
is a new multi-channel playback format developed by Dolby Laboratories using
II can be used to decode not only sources recorded in Dolby Surround (
II
offers a wider band range (20 Hz to 20 kHz or greater). In addition, the surround
II
they are played as stereo signals.
II when the "DOLBY/DTS SURROUND" mode is selected.
and .
) but also