Manual Harman Kardon AVR7300 (page 37 of 60) (English)

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OPERATION

OPERATION 37OPERATION 37

dynamic range and significant improvements to signal-

to-noise ratios. In addition, digital systems have the capa-

bility to deliver an additional channel that is specifically

devoted to low-frequency information. This is the “.1”

channel referred to when you see these systems

described as “5.1,” “6.1” or “7.1.” The bass channel is

separate from the other channels, but since it is inten-

tionally bandwidth-limited, sound designers have given it

that unique designation.

Dolby Digital

Dolby Digital is a standard part of DVD, and high-defini-

tion (HDTV) broadcasts and is available on specially

encoded LD discs and satellite broadcasts.

An optional, external RF demodulator is required

to use the AVR 7300 to listen to the Dolby Digital

soundtracks available on laser discs. Connect the RF

output of the LD player to the demodulator and then

connect the digital output of the demodulator to the

Optical or Coaxial Inputs ®† of the

AVR 7300. No demodulator is required for use with

DVD players or DTS-encoded laser discs.

DTS

DTS is a digital audio system capable of delivering 5.1

or 6.1 discrete or matrix sound field reproduction.

Although both DTS and Dolby Digital are digital, they

use different methods of encoding the signals, and

thus they require different decoding circuits to convert

the digital signals back to analog.

DTS-encoded soundtracks are available on select

DVD and LD discs, as well as on audio-only DTS

discs. You may use any LD or CD player equipped

with a digital output to play DTS-encoded discs with

the AVR 7300. All that is required is to connect the

player’s output to either an Optical or Coaxial Input

on the rear panel ®† or front panel .

In order to listen to DVDs encoded with DTS sound-

tracks, 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 play-

ers were not able to play DTS-encoded DVDs. This

does not indicate a problem with the AVR 7300, 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 AVR 7300, change

the player’s settings in the “Audio” or “Bitstream” con-

figuration 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 AVR 7300. Connect

the digital outputs from DVD players, HDTV receivers,

satellite systems or CD players to the Optical or

Coaxial Inputs ®† . In order to provide

a backup signal and a source for analog stereo record-

ing, the analog outputs provided on digital source

equipment should also be connected to their appropri-

ate inputs on the AVR 7300 rear panel (e.g., connect

the analog stereo audio output from a DVD to the DVD

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 shown on

page 23, first select the desired input using the

remote or front-panel controls, as outlined in this man-

ual. Next, press the Digital Select Button p

and then using the

⁄

Navigation Button o

on the remote or the

‹

›

Buttons on the front

panel,

choose any OPTICAL or COAXIAL

inputs, as they appear in the Upper Display Line #

or on-screen display. When the digital source is playing,

the AVR 7300 will automatically detect which type of

digital data stream is being decoded and

display that

information in the Upper Display Line #.

When both a digital and an analog connection are

made between a source device and the AVR, the digi-

tal input is the default. If the digital stream is not pres-

ent or is interrupted, the unit will automatically switch

over to the analog inputs for the selected source.

Digital Bitstream and Surround Mode Indications

When a digital source is playing, the DPR senses the

type of bitstream data that is present. Using this infor-

mation, 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 AVR 7300 shows

you what type of signal is present. This will help you

to understand the choice of modes.

When a digital source is first detected, the AVR 7300

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 Lower Display Line $ for about five seconds

before that portion of the display returns to the normal

surround mode indication.

For Dolby Digital and DTS sources, a three-digit indica-

tion 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.

• 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.

• A “2” tells you that separate front left and right sig-

nals are available, but there is no discrete center

channel signal. This will be displayed for Dolby

Digital bitstreams that have stereo program material.

• 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.

• 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.

• 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.

• 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.

• A “0” indicates that there is no surround channel

information. This will be displayed for two-channel

stereo programs.

The last number indicates whether there is a discrete

low-frequency effects (LFE) channel. This is the “.1” in

the common abbreviation of “5.1” sound and it is a

special channel that contains only bass frequencies.

• A “.1” tells you that an LFE channel is present. This

will be displayed for Dolby Digital 5.1 and DTS 5.1

programs, as available.

• A “0” indicates that there is no LFE channel infor-

mation 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.

• The information in the right side of the display will

tell you if the digital audio data contains a special

flag signal that will automatically activate the appro-

priate 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.

AVR7300(120v)-OM 6/14/04 9:15 AM Page 37

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