Harman Kardon AVR 140 Owner's Manual page 31

6.1 or 7.1 mode. This will be shown as EX-ON
or EX-OFF for Dolby Digital bitstreams and
ES-ON or ES-OFF for DTS bitstreams.
If the EX flag is off, and your receiver has been config-
ured for 6.1/7.1 operation, you may manually turn on
EX processing as appropriate by simply selecting the
Dolby Digital EX surround mode as described on
pages 18 and 27. When the ES flag is not present in
a DTS bitstream, you may benefit from a 6.1-channel
presentation by selecting the DTS Neo:6 post-pro-
cessing surround mode using the procedure described
on pages 18 and 27. In that mode, the DTS Neo:6
algorithms will be used to derive the surround back
channel from the DTS bitstream information.
Surround Mode Post-Processing
Thanks to the power of the AVR 140's DSP processor,
a variety of surround mode options are available for
most digital signals either to deliver the native informa-
tion or to produce an enhanced sound field to match
the number of speakers in your system. The modes
available and the number of channels available for
each mode will vary depending on the incoming bit-
stream, and the configuration of your system, and are
listed in the tables on page 32. The modes may be
selected in the usual manner by selecting the major
Surround Mode Group first, and then scrolling through
the options (see pages 18 and 27).
The incoming bitstreams are indicated in the Lower
Display Line ı as described above. After you have
selected a surround mode, after about 5 seconds,
the bitstream will be displayed briefly before the unit
returns to normal operation. Therefore, you may ascer-
tain the current bitstream by pressing the button for
the major Surround Mode Group and waiting for a few
moments for the bitstream to appear in the Lower
Display Line ı. The bitstream information will also
be displayed after the source input has been changed.
To use the tables on page 32, match the indication in
the display to the Incoming Bitstream listed in the left
column. The available surround modes are shown to
the right.
See page 37 for information on setting the system to
use a surround mode that you select by referring to
these tables, rather than the default digital mode.
It is always a good idea to check the readout for the
channel data to make certain that it matches the audio
logo information shown on the back of a DVD pack-
age. In some cases you will see the indication for
"2/0/0" even when the disc contains a full 5.1, or
3/2/.1 signal. When this happens, check the audio
output settings for your DVD player or the audio menu
selections for the specific disc being played to make
certain that the player is sending the correct signal to
the AVR. See the tables on page 32.
PCM Audio Playback
PCM is the abbreviation for Pulse Code Modulation,
which is the type of digital signal used for standard CD
playback and other non-Dolby Digital and non-DTS
digital sources such as Mini-Disc. The digital circuits
in the AVR 140 are capable of high-quality digital-to-
analog decoding, and they may be connected directly
to the digital audio output of your CD player.
Connections may be made to either the rear-panel
Optical or Coaxial Inputs ·d or the front-panel
Digital Inputs *(.
To listen to a PCM digital source, first select the input for
the desired source (e.g., CD). Next press the Digital
Select Button #q and then use the
Buttons n on the remote, or the
‹
/
Buttons ) on the front panel, until the desired choice
appears in the Upper Display Line
During PCM playback, you may select any Surround
mode except Dolby Digital or DTS, as shown in the
table on page 32. Note that for convenience, we have
included the modes available for analog sources
(including the tuner) in this chart.
When a PCM signal is detected, the Lower Display
Line ı will briefly show a message with the letters
PCM, in addition to a readout of the sampling fre-
quency of the digital signal. In most cases this will be
44.1kHz or 48kHz, though in the case of
specially mastered, high-resolution audio discs you will
see a 96kHz indication.
Speaker/Channel Indicators
In addition to the bitstream indicators, the AVR 140
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 9.)
Figure 9
The letters inside the boxes tell you which channels
are receiving an input signal. Since conventional ana-
log audio is only two channels, the "L" and "R" letters
will light with any analog source. When a digital source
is in use you will see letters displayed that correspond
to the number of channels in the incoming data
stream, which may be just the L and R for 2-channel
PCM or 2.0 Dolby Digital material. When a 5.1 signal
is being received, the L/C/R/SL/SR indicators will
light, with the LFE indication also being shown when
an LFE signal is present. All seven indicators (including
the SBL/SBR letters) will light for a 7.1 signal, and a
horizontal line is shown to connect the SBL/SBR indi-
cators when a 6.1 source is in use.
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 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 soundtrack. 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 adjustments to
⁄ / ¤
your DVD player (usually with the "Audio Select" button
›
Selector
or in a menu screen on the disc) to send a full 5.1
feed to the AVR 140. It is also possible for the type
.
of signal feed to change during the course of a DVD
playback. In some cases, the menu screens and pre-
views of special material will only be recorded in 2.0
audio, while the main feature is available in 5.1 audio.
The AVR 140 will automatically sense changes to
the bitstream and channel count and reflect them in
these indicators.
The letters used by the Speaker/Channel Input
Indicators
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 paused. The
flashing indicators remind you that the playback has
stopped due to the absence of a digital signal and not
through any fault of the AVR 140. This is normal, and
the digital playback will resume once the playback is
started again.
The boxes around the channel indication letters are
used to show which speakers are configured in your
system. A small box around the letter indicates that a
"Small" speaker has been assigned to that position,
while a larger, double box indicates a "Large" speaker
assignment.
Note that in some cases, such as an analog stereo or
2.0 digital source, you will see empty speaker position
boxes, which indicates that the speaker is active and
will receive sound, but that there is no discrete signal
for that channel. In other cases, you may see letters
with no speaker boxes. This indicates that there is a
discrete signal for that channel, but due to the mode
in use there is no signal being sent to the channel.
Night Mode
A special feature of Dolby Digital is the Night mode,
which enables specially encoded Dolby Digital input
sources to be played back with full digital intelligibility
while reducing the minimum peak level by 1/4 to 1/3.
This prevents abruptly loud transitions from disturbing
OPERATION
also flash to indicate when a bitstream
(Continued on page 33)
OPERATION OPERATION 31 31