When a digital source is first detected, the AVR21EN will display
a message to indicate the type of bitstream being received. This
message will appear shortly after an input or surround mode is
changed, and will remain in the AVR
Lower Display Line for
about 5 seconds before that portion of the display returns to
the normal surround mode indication.
For Dolby Digital and DTS sources, a three-digit indication will
appear, showing the number of channels present in the data.
An example of this type of display is 3/2/.1. The first number in
the display message indicates how many discrete front-channel
signals are present.
I A “3” tells you that separate front left, center and front right
signals are available. This will be displayed for Dolby Digital 5.1
and DTS 5.1 programs.
I A “2” tells you that separate front left and right signals are
available, but there is no discrete center channel signal. This will
be displayed for Dolby Digital bitstreams that have stereo pro-
gram material.
I A “1” tells you that there is only a mono channel available in
the Dolby Digital bitstream. The middle number in the display
message indicates how many discrete surround channel signals
are present.
I A "3" tells you that separate, discrete left surround, center back
surround and right surround signals are present. This is available
only on discs with DTS-ES digital audio.
I A “2” tells you that separate surround left and right signals are
available. This will be displayed for Dolby Digital 5.1 and DTS 5.1
programs.
I A “1” tells you that there is only a single, surround-encoded
surround channel. This will appear for Dolby Digital bitstreams
that have matrix encoding.
I A “0” indicates that there is no surround channel information.
This will be displayed for 2-channel stereo programs.
The last number indicates whether there is a discrete low-frequency
effects (LFE) channel. This is the “.1” in the common nomenclature
(e.g., “5.1 sound”) and it is a special channel that contains only
bass frequencies.
I A “.1” tells you that an LFE channel is present. This will be displayed
as available for Dolby Digital 5.1 and DTS 5.1 programs.
I A “0” indicates that there is no LFE channel information
available. However, even when there is no dedicated LFE
channel, low-frequency sound will be present at the subwoofer
output when the speaker configuration is set to show the
presence of a subwoofer.
I The information on the right side of the display will tell you
whether the digital audio data contains a special flag signal that
will automatically activates the appropriate 6.1 or 7.1 mode. This
will be shown as
EX-ON or EX-OFF for Dolby Digital bit-
streams and
ES-ON or ES-OFF for DTS bitstreams.
When Dolby Digital 3/2/.1 or DTS or DTS-ES signals are being
played, the AVR will automatically switch to the proper surround
mode, and no other processing may be selected. When a Dolby
Digital signal with a 3/1/0 or 2/0/0 signal is detected, you may select
any of the Dolby surround modes.
130
System Operation
In order to listen to DVDs encoded with DTS soundtracks, the DVD
player must be compatible with the DTS signal, which is indicated
by the “DTS Digital Out” logo on the player’s front panel. Some
early DVD players were not able to play DTS-encoded DVDs. This
does not indicate a problem with the AVR21EN, as those players
cannot pass through the DTS signal. If you’re in doubt as to the
capability of your DVD player to handle DTS discs, consult the
player’s owner’s manual.
IMPORTANT NOTE: Many DVD players have a default setting that
does not pass through the DTS data, even though the machine is
capable of doing so. If your DVD player has the “DTS Digital Out”
logo but does not trigger DTS playback in the AVR21EN, change
the player’s settings in the “Audio” or “Bitstream” configuration
menu so that DTS playback is enabled. The method for doing this
will vary with each player. In some cases, the proper menu choice
will be “Original,” while in others it will be “DTS.” Consult the
owner’s manual for your player to find the specific information
to find the proper setting.
Selecting a Digital Source
To utilize either digital mode, you must have properly connected a
digital source to the AVR21EN. Connect the digital outputs from
DVD players, HDTV receivers, satellite systems or CD players to the
Optical C or Coaxial Inputs F. In order to provide a backup
signal and a source for multiroom audio signal distribution and
analog stereo recording, the analog outputs provided on digital
source equipment should also be connected to their appropriate
inputs on the AVR21EN rear panel (e.g., connect the analog stereo
audio output from a DVD to the Disc 1, 2 or 3
Audio Inputs
on the rear panel when you connect the source’s digital outputs).
If you have not already configured an input for a digital source
using the on-screen menus as described in
AVR21EN Configuration/
Source Audio Input,
first select the desired input using the remote
or front-panel controls, as outlined in this manual. Next, press the
Audio Input Button A and then using the
⁄
/
¤
Navigation Button
F
on the remote or the
‹
/
›
Mode Adjust Buttons 68 on the
AVR front panel, choose any Optical or Coaxial inputs, as they
appear in the AVR
Upper Display Line or on-screen display.
When the digital source is playing, the AVR21EN will automatically
detect which type of digital data stream is being decoded and
briefly display that information in the
Lower Display Line
before changing to display surround mode.
When both a digital and an analog connection are made between
a source device and the AVR, the digital input is the default. If the
digital stream is not present or is interrupted, the unit will auto-
matically switch over to the analog inputs for the selected source.
Digital Bitstream and Surround Mode Indications
When a digital source is playing, the AVR senses the type of
bitstream data that is present. Using this information, the correct
surround mode will automatically be selected. For example, DTS
bitstreams will cause the unit to switch to DTS decoding, and Dolby
Digital bitstreams will enable Dolby Digital decoding. When the
unit senses PCM data from CDs or LDs, you may select any of the
standard surround modes, such as Dolby Pro Logic II or Logic 7.
Since the range of available surround modes is dependent on the
type of digital data that is present, the AVR21EN shows you what
type of signal is present. This will help you to understand the
choice of modes.
To Next Page
Loading...