Using phase control, Using virtual surround back (vsb), Listening to your system 05 – Pioneer VSX-518 Manuel d'utilisation
Page 27
Listening to your system
05
27
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Using Phase Control
This receiver’s Phase Control feature uses
phase correction measures to make sure your
sound source arrives at the listening position in
phase, preventing unwanted distortion and/or
coloring of the sound (see illustration below).
Phase Control technology provides coherent
sound reproduction through the use of phase
matching
1
for an optimal sound image at your
listening position. The default setting is on and
we recommend leaving Phase Control
switched on for all sound sources.
•
Press
PHASE
(PHASE CONTROL) to switch
on phase correction.
Using Virtual Surround Back
(VSB)
Selecting this mode allows you to hear a
virtual surround back channel through your
surround speakers. For example, you can
choose to listen to sources with no surround
back channel information (for example, 5.1
encoded material) with emulated 6.1
encoding (
VSB ON
). Sometimes the material
may sound better in the 5.1 format for which it
was originally encoded. In this case you can
simply switch it off (
VSB OFF
).
2
Depending on the input signal and the
Listening Mode, the Virtual Surround Back
mode may not be effective.
•
Press VSB MODE (front panel) to select
a virtual surround back channel option.
Each press cycles through the options as
follows:
•
VSB ON
– Virtual Surround Back is always
used (for example, on 5.1 encoded
material)
•
VSB OFF
– Virtual Surround Back mode is
switched off
Note
1 Phase matching is a very important factor in achieving proper sound reproduction. If two waveforms are ‘in phase’, they crest
and trough together, resulting in increased amplitude, clarity and presence of the sound signal. If a crest of a wave meets a
trough (as shown in the upper section of the diagram above) then the sound will be ‘out of phase’ and an unreliable sound
image will be produced.
?
Sound
source
Sound
source
Listening
position
Listening
position
Front speaker
Subwoofer
Front speaker
Subwoofer
P
H
A
S
E
C
O
N
T
R
O
L
O
F
F
P
H
A
S
E
C
O
N
T
R
O
L
O
N
AUTO/DIRECT
PHASE
ADV SURR
SOUND
RETRIEVER
STEREO/
A.L.C.
QUICK
SETUP
STANDARD
DIALOG
2 The Virtual Surround Back mode is not effective when using headphones, Stream Direct, Stereo, Auto level control stereo
mode, Front Stage Surround Advance mode. It is also unavailable if the surround speaker is set to
NO
in
Speaker setting
on
page 31.
STANDBY/ON
PHONES
DVD
TV
DVD 5.1
DVR
MIDNIGHT/
LOUDNESS
VSB MODE
SIGNAL
SELECT
SOUND
RETRIEVER
PHASE
CONTROL
INPUT
SELECTOR
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