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DESCRIPTION OF TERMINOLOGY
Dolby Pro Logic Surround:
This refers to the Dolby Surround sound decoder system
which is used for movies. Using 4 channels, the sound ef-
fects, dialog, sound direction, music, etc. are all reproduced
more realistically. Dolby Pro Logic Surround makes the lo-
cation and movement of sounds much more natural than the
original Dolby Surround system. You can enjoy a realistic,
powerful feeling like being at a live performance or as if you
were at a movie theater or in a concert hall. In order to enjoy
this effect, you need at least one pair of surround speakers
and center speaker.
Dolby Digital:
This is the new digital surround system that was created to
reproduce theater quality stereophonic Dolby Surround
sound at home. Films are now recorded using the 5.1 chan-
nel system. Dolby Digital can handle the original soundtrack
without modification, allowing you to enjoy the sound field
created by the film maker at home.
Dolby Pro Logic Dolby Digital
2 Number of recording channels 6
4 Number of playback channels 6
Front (L, R) + Center + Rear Playback configuration of channels
Front (L, R) + Center + Rear (L, R) +
Low frequency effects (sub woofer)
Matrix processing, Dolby Surround Sound processing
Discrete processing,
Dolby digital encoding/decoding
16 bits Number of signal processing bits 20 bits
7 kHz
Surround Sound high-frequency
playback limit
20 kHz
L
S
CR
S
L
SW
LS
CR
RS
Dolby Surround:
This is the encoding/decoding system for general-purpose
Dolby Surround. When the sound from films recorded in
Dolby Surround are reproduced, you will have the feeling of
being at a live performance, as if the action is taking place
right in front of you.
LFE (Low Frequency Effect):
This refers to the special low-frequency sound effects used
in Dolby Digital recordings.
When a signal containing LFE encoding is played by this
unit, "LFE" will appear in the display.
PCM (Pulse Code Modulation)
This is a recording/transmission system used for digital audio
signals. This unit can handle sampling frequencies of 32 kHz,
44.1 kHz and 48 kHz.
Sub woofer:
The sub woofer is a special speaker used to emphasize bass
sounds.
In Dolby Digital, this speaker reproduces the LFE signals as
well as the low-frequency signals being sent to the front,
center and surround speakers.
In Dolby Pro Logic, this speaker reproduces the low-fre-
quency signals sent to the front and center speakers.
It also reproduces low frequency sounds from ordinary stereo
recordings.
HT-DD5000(SEC) TINSE0009SJZZ
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