Sony STR-DE515 - Manual (Page 19)

Additional
Glossary
Center mode
Setting of speakers to en>iance Dolby Pro
Logic Surround mode. To obtain the best
possible surround sound, select one of the
following four center modes according to
your speaker system.
• NORMAL mode
Select NORMAL mode if you have front
and rear speakers and a small center
speaker. Since a small speaker cannot
produce enough bass, the bass sound of
the center channel is output from the front
speakers.
Center
speaker (L) speaker <R)
WIDE mode
Select WIDE mode il you have front and
rear speakers and a large center speaker.
With the WIDE mode, you can lake full
advantage of Dolby Surround sound.
Center
Front speaker Front
speaker (L) speaker (R)
Rear Rear
speaker (1) speaker (R)
PHANTOM mode
Select PHANTOM mode if you have front
and rear speakers but no center speaker.
The sound of the center channel ts output
from the front speakers
3 CH LOGIC mode
Select 3 CM LOGIC mode if you have front
and contor speakers but no rear speaker.
The sound of the rear channel is output
from the front speakers to let you
experience some of the surround sound
without using rear speakers.
Front
speaker
Types of sound
Early reflections
Reverberation
Direct sound
Transition of sound from rear speakers
Direct sound Early
Level t reflections Reverberation
Early reflection time Time
Delay time
Time lag between the surround sound output
from front speakers and rear speakers. By
adjusting the delay time of the rear speakers,
you can obtain the feeling of presence. Make
the delay time longer when you have placed
the rear speakers m a small room or close to
your listening position, and make it shorter
when you hove placed them in a large room
or apart from your listening position.
Oirea tuning
Tuning method to let you directly entera
station's frequency using the numeric
buttons. Use this method if you know the
frequency of the station you want.
Dolby Pro Logic Surround
Decoding system of Dolby Surround sound
standardi
2ed in TV programs and movies.
Compared with the former Dolby Surround
S)'Stcm, Dolby Pro Logic Surround improves
sound image by using four separate channels:
off-screen audio effects, on-screen dialog,
ieft-to-right panning, and music. These
channels manipulate the sound to be heard
and enhance the action as it happens on the
screen. To take advantage of Dolby Pro Logic,
you should have at least one pair of roar
speakers and/or one center speaker. You also
need to select the appropriate center mode to
enjoy a full effect.
5.1 INPUT
Jacks used to input the audio signals that are
decoded from the Dolby Digital AC'3 format
audio. The jacks are usually connected with
an AC-3 decoder or a DVD player equipped
with an AC-3 decoder. Tliis connection
enables the amplifier to reproduce 5.1
channel surround sounds.
Preset station
A radio broadcasting station that is stored in
memory of the receiver. Once you "preset"
stations, you no longer have to tune in the
station-s. Each preset station is assigned its
own preset number, which lets you tune
them in quickly.
Surround sound
Sound that consists of three elements: direct
sound, early reflected sound (early
reflections) and reverberalivc .sound
(reverberation). The acoustics where you hear
the sound affect the way these three sound
elements are heard. These sound elements are
combined in such a way that you can actually
feel the size and the t)T>e of a concert hall.
Test tone
Signal given out by the receiver for adjusting
the speaker volume. The te.st tone will come
out as follows:
» in a system with a center speaker
(NORMAUWIDE/3 CH LOGIC modes)
The test tone is output from the front L
(left), center, front R (right), and rear
speakers in succession
Fronts Front (R)
Center
NORMAL/WIDE
In a system without a center speaker
(PHANTOM mode)
The test tone is output from the front and
the rear speakers alternately
Front (L, R)
PHANTOM
□ Rear(UR)0
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