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44 OPERATION
Operation
In most cases this will be 48KHZ, though in
the case of specially mastered, high-resolution
audio discs you will see a
96KHZindication.
The
PCM48KHZindication will also appear
when modes or inputs are changed for analog
sources. In those cases the system is telling you
the sampling frequency used internally at the
output of the analog-to-digital converters that
change the incoming signal from a VCR, tape
deck, the tuner, or other ana-log source to digital.
Speaker/Channel Indicators
In addition to the Bitstream Indicators, the
AVR features a set of unique channel-input
indicators that tell you how many channels of
digital information are being received and/or
whether the digital signal is interrupted.
(See Figure).
These indicators are the
L/C/R/LFE/SL/SR/SBL/SBR letters that are inside
the center boxes of the Speaker/Channel
Input Indicators
$
in the front panel Main
Information Display
Ò
.
When a standard analog stereo or matrix
surround signal is in use, only the “L” and “R”
indicators will light, as analog signals have only
left and right channels.
Digital signals, however, may have one, two, five,
six or seven separate channels, depending on
the program material, the method of transmis-
sion and the way in which it was encoded. When
a digital signal is playing, the letters in these
indicators will light in response to the specific
signal being received. It is important to note that
although Dolby Digital, for example, is referred
to as a “5.1” system, not all Dolby Digital DVDs
or audio tracks selected on DVD or other Dolby
Digital programs are encoded for 5.1.Thus, it is
sometimes normal for a DVD with a Dolby
Digital soundtrack to trigger only the “L” and
“R” indicators.
NOTE: Many DVD discs are recorded with both
“5.1” and “2.0” versions of the same sound-
track.When playing a DVD, always be certain to
check the type of material on the disc. Most
discs show this information in the form of a
listing or icon on the back of the disc jacket.
When a disc does offer multiple soundtrack
choices, you may have to make some adjust-
ments to your DVD player (usually with the
“Audio Select” button or in a menu screen on
the disc) to send a full 5.1 feed to the AVR or to
select the appropriate audio track and thus lan-
guage. It is also possible for the type of signal
feed to change during the course of a DVD play-
back. In some cases the previews of special
material will only be recorded in 2.0 audio, while
the main feature is available in 5.1 audio.As
long as your DVD player is set for 6-channel out-
put, the AVR will automatically sense changes to
the bitstream and channel count and reflect
them in these indicators.
Important Note: When a digital surround
source (Dolby Digital, DTS) is played, the letters
SBL/SBR for the Surround Back channels will
appear only when a DTS ES DISCRETE 6.1
source is played.Then this surround mode will
be indicated in the front display and on-screen
display. With all other recordings the icons for
the surround back speakers may light (when
those speakers have been configured) to indi-
cate that a signal will be fed to them (Matrix
decoded with NEO:6, LOGIC 7 or 7 CH Stereo),
but no letters inside will light as the unit will not
receive an input signal for the surround back
channels.
The letters used by the Speaker/Channel
Input Indicators
$
also flash to indicate
when a bitstream has been interrupted.This will
happen when a digital input source is selected
before the playback starts, or when a digital
source such as a DVD is put into a Pause mode.
The flashing indicators remind you that the play-
back has stopped due to the absence of a digital
signal and not through any fault of the AVR. This
is normal, and the digital playback will resume
once the playback is started again.
Night Mode
A special feature of Dolby Digital is the Night
mode, which enables Dolby Digital input sources
to be played back with full digital intelligibilty
while reducing the maximum peak level and
lifting the low levels by
1/4 to 1/3.This prevents
abruptly loud transitions from disturbing others
without reducing the impact of the digital
source. The Night mode is available only when
the Dolby Digital mode is selected.
The Night mode may be engaged when a Dolby
Digital DVD is playing by pressing the Night
Button
B
on the remote. Next, press the
⁄
/
¤
buttons
D
to select either the middle
range or full compression versions of the Night
mode. To turn the Night mode off, press the
⁄
/
¤
buttons
D
until the message in the
lower third of the video display and the Main
Information Display
Ò
reads D-RANGE
OFF
.
The Night mode may also be selected to always
be on as soon as the Dolby Digital mode is acti-
vated at either level of compression using the
options in the
DOLBYmenu. See page 27 for
information on using the menus to set this
option.
IMPORTANT NOTES ON DIGITAL
PLAYBACK:
• When the digital playback source is stopped,
or in a pause, fast forward or chapter search
mode, the digital audio data will momentarily
stop, and the channel position letters inside the
Speaker/Channel Indicators
$
will flash.
This is normal and does not indicate a problem
with either the AVR or the source machine.The
AVR will return to digital playback as soon as
the data is available and when the machine is in
a standard play mode.
• Although the AVR will decode virtually all DVD
movies, CDs and HDTV sources, it is possible that
some future digital sources may not be compatible
with the AVR.
• Note that not all digitally encoded programs
and not all audio tracks on a DVD contain full
5.1 or 6.1 channel audio. Consult the program
guide that accompanies the DVD or laser disc to
determine which type of audio has been record-
ed on the disc.The AVR will automatically sense
the type of digital surround encoding used,
indicate it in the Channel Input Indicators
$
and adjust to accommodate it.
• When a Dolby Digital or DTS source is playing,
you normally may not be able to select some of
the analog surround modes such as Dolby Pro
Logic II, Dolby 3 Stereo, Hall,Theater, 5CH/7CH
Stereo or Logic 7, except with specific Dolby
Digital 2.0 recordings that can be played with
the Pro Logic II modes too (see page 38).
• When a digital source is playing, it is NOT pos-
sible to make an analog recording using the
Tape
3
or Video 1
7
record outputs, even if
the source is connected to any digital input of
the AVR only, as long as "Surround Off" mode is
selected (possible with a PCM source only). But
the analog two channel signal, even of a Dolby
Digital (not DTS) source, the ”Downmix” to
Stereo or Dolby Surround, can be recorded by