Harman Kardon HA160-0004-A, Руководство пользователя

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Operation
45
Signature 2.0
•
PGM Content
describes the number of
surround channels encoded in the disc or broadcast
being received.
3/2.1
indicates that the source is a full 5.1
channel signal, with three channels of front
(left/center/right) information, two channels of
discrete surround information and one channel of
dedicated low-frequency effects (LFE) information.
This last channel is the “1” often referred to in 5.1
surround. The reason it is described as “1” is that
although the LFE channel is fully discrete and
separate from the other five main channels, it is
restricted to low-frequency information only, and is
thus not considered a “full” channel.
3/1
indicates conventional matrix surround
programming that is delivered digitally. The “3”
refers to the front three channels (left/center/right),
while the “1” is the single monaural surround
channel. This is the same process used for con-
ventional analog Dolby Pro Logic decoding.
2/0
indicates a standard two-channel stereo
program with no encoded surround information.
1+1
indicates a program that is encoded to play
back in the “dual mono” mode. This means that
there is no stereo information recorded in the
program. The same monaural signal will be heard
from both the front left and front right speakers
when
1+1
is shown as the
PGM Content
.
•
Matrix Encoded
shows a “
Yes
” when paired
with a
3/1
on the
PGM Content
line to indicate
that the program sources have surround information
encoded in the left and right channels. When you see
a “
Yes
” on this line the best surround field will be
reproduced by selecting Dolby Pro Logic as the
surround mode.
•
Sample Rate
displays the actual sample
rate used to create the digital audio.
48kHz
is the
normal sampling rate for Dolby Digital audio signals
on DVD discs and HDTV broadcasts.
•
Data Rate
displays the speed with which digital
data is transferred from the source player to the 2.0’s
digital decoder. A
384kb/second
is the typical
data rate for 5.1 DVD discs, but some discs may have
a higher or lower data rate depending on the number
of channels encoded, the running time of the disc and
the quality of the audio.
When there is a mismatch between the selected
surround mode and the incoming signals that prevents
the 2.0 from processing the signal as requested, it will
automatically select the best possible mode and display it
as part of the information on the
AC-3 Info
screen
(Figure OSD-27).
Figure OSD-27
Tuner Operation
The Signature 2.0 features an FM Stereo/AM tuner
with the RDS data system to make it easier to identify
the type of programming broadcast by FM stations.
Stations may be tuned manually, directly, assigned to
one of thirty preset locations and recalled in a number
of different ways.
Tuner and Frequency Band Selection
To select the tuner as an input source, press the
Tuner
button g on the remote. The tuner may also be
selected by pressing either
Source Selector
buttons
3 on the front panel until
Tuner
appears in the
front panel Information Display . When the tuner is
selected the on-screen display will briefly display the
frequency and band of the last station tuned, the preset
number of the station, if any, and the current surround
mode (Figure OSD-17). The front panel
Information
Display will first show the surround mode and the
Tuner
source indication for a few seconds (Figure
FPD-10) and then switch to a display of the station’s
frequency and band, and the preset memory, if any.
D V D V O L
D o l b y D i g i t a l 1 0
N o A C - 3 I n f o
A l t M o d e : D o l b y P r o L o g i c
A C - 3 I n f o
P G M C o n t e n t Ð Ð Ð
M a t r i x E n c o d e d Ð Ð Ð
S a m p l e R a t e Ð Ð Ð
D a t a R a t e Ð Ð Ð
Ð Ð Ð