Listening to your system
06
59
En
Phase Cont
r
ol technology p
r
ovides cohe
r
ent sound
r
ep
r
oduction th
r
ough the use of phase matching
1
fo
r
an
optimal sound image. The default setting is on and we
r
ecommend leaving Phase Cont
r
ol switched on fo
r
all
sound sou
r
ces.
1
Set the remote control to the receiver operation
mode.
•
Press PHASE CTRL (PHASE CONTROL) to switch on
phase correction.
The
PHASE CONTROL
indicato
r
on the f
r
ont panel lights.
Better sound using Phase Control and
Full Band Phase Control
(SC-LX83 only)
This
r
eceive
r
is equipped with the two types of functions
that co
rr
ect phase disto
r
tion and g
r
oup delay: Phase
Cont
r
ol and Full Band Phase Cont
r
ol. Activating Full
Band Phase Cont
r
ol is st
r
ongly
r
ecommended because it
also involves the effects of Phase Cont
r
ol.
The Full Band Phase Cont
r
ol featu
r
e calib
r
ates the
f
r
equency-phase cha
r
acte
r
istics of the speake
r
s
connected.
Standa
r
d speake
r
s designed exclusively fo
r
audio use
gene
r
ally
r
ep
r
oduce sound with the divided f
r
equency
bands output f
r
om a speake
r
system consisting of
multiple speake
r
s (in case of typical 3-way speake
r
s, fo
r
instance, the tweete
r
, the squawke
r
(mid
r
ange), and the
woofe
r
output sound in the high-, middle-, and low-
f
r
equency
r
anges,
r
espectively). Though these speake
r
s
a
r
e designed to flatten the f
r
equency-amplitude
cha
r
acte
r
istics ac
r
oss wide
r
anges, the
r
e a
r
e cases
whe
r
e the g
r
oup delay cha
r
acte
r
istics a
r
e not effectively
flattened. This phase disto
r
tion of the speake
r
s
subsequently causes g
r
oup delay (the delay of low-
f
r
equency sound against high-f
r
equency sound) du
r
ing
audio signal playback.
This
r
eceive
r
analyzes the f
r
equency-phase
cha
r
acte
r
istics of the speake
r
s by measu
r
ing test signals
output f
r
om the speake
r
s with the supplied mic
r
ophone,
the
r
efo
r
e flattening the analyzed f
r
equency-phase
cha
r
acte
r
istics du
r
ing audio signal playback
2
– the same
co
rr
ection is made fo
r
a pai
r
of left and
r
ight speake
r
s.
This co
rr
ection minimizes g
r
oup delay between the
r
anges of a speake
r
and imp
r
oves the f
r
equency-phase
cha
r
acte
r
istics ac
r
oss all
r
anges.
Fu
r
the
r
mo
r
e, the enhanced f
r
equency-phase
cha
r
acte
r
istics between channels ensu
r
e bette
r
su
rr
ound sound integ
r
ation fo
r
multichannel setting.
3
1
Set the remote control to the receiver operation
mode.
2
Press PHASE CTRL (PHASE CONTROL) to select
FULLBAND PHASE.
4
Both the Phase Cont
r
ol and Full Band Phase Cont
r
ol
functions a
r
e switched on. The
FULL BAND
and
indicato
r
, on the f
r
ont panel lights.
Note
1 • Phase matching is a ve
r
y impo
r
tant facto
r
in achieving p
r
ope
r
sound
r
ep
r
oduction. If two wavefo
r
ms a
r
e ‘in phase’, they c
r
est and t
r
ough
togethe
r
,
r
esulting in inc
r
eased amplitude, cla
r
ity and p
r
esence of the sound signal. If a c
r
est of a wave meets a t
r
ough, then the sound will
be ‘out of phase’ and an un
r
eliable sound image will be p
r
oduced.
• The
PHASE CONTROL
featu
r
e is available even when the headphones a
r
e plugged in.
• If you
r
subwoofe
r
has a phase cont
r
ol switch, set it to the plus (+) sign (o
r
0°). Howeve
r
, the effect you can actually feel when
PHASE CONTROL
is set to
ON
on this
r
eceive
r
depends on the type of you
r
subwoofe
r
. Set you
r
subwoofe
r
to maximize the effect. It is also
r
ecommended you t
r
y changing the o
r
ientation o
r
the place of you
r
subwoofe
r
.
• Set the built-in lowpass filte
r
switch of you
r
subwoofe
r
to off. If this cannot be done on you
r
subwoofe
r
, set the cutoff f
r
equency to a highe
r
value.
• If the speake
r
distance is not p
r
ope
r
ly set, you may not have a maximized
PHASE CONTROL
effect.
• The
PHASE CONTROL
mode cannot be set to
ON
in the following cases:
– When the
PURE DIRECT
mode is switched on.
– When
MULTI CH IN
input is selected.
– When the
HDMI
audio output pa
r
amete
r
is set to
THROUGH
in
Setting the Audio options
on page 71.
2 To calib
r
ate and analyze the f
r
equency-phase cha
r
acte
r
istics of the speake
r
s, eithe
r
follow the
Full Auto MCACC
p
r
ocedu
r
e unde
r
Advanced
MCACC
(see
Automatically conducting optimum sound tuning (Full Auto MCACC)
on page 43), o
r
set
Auto MCACC
menu unde
r
Auto MCACC
unde
r
Advanced MCACC
to
Full Band Phase Ctrl
. Select
ALL
when you pe
r
fo
r
m the
Auto MCACC
with
Auto MCACC
menu. Upon
calib
r
ation of the f
r
equency-phase cha
r
acte
r
istics of the speake
r
s, the
Full Band Phase Ctrl
featu
r
e is automatically switched on.
3 The o
r
iginal cha
r
acte
r
istics of g
r
oup delay of the speake
r
s calib
r
ated and the ta
r
geted cha
r
acte
r
istics afte
r
co
rr
ection can be displayed
g
r
aphically in the GUI sc
r
een (see
Group Delay (SC-LX83 only)
on page 106). Also, by t
r
ansfe
rr
ing the measu
r
ement data to the compute
r
using
a USB device, the o
r
iginal cha
r
acte
r
istics of g
r
oup delay of the speake
r
s calib
r
ated and the co
rr
ected cha
r
acte
r
istics of g
r
oup delay can be
displayed in 3-dimension on you
r
PC (see
Output MCACC data
on page 107).
4 The
Full Band Phase Ctrl
mode cannot be set to
ON
in the following cases:
– When headphones a
r
e plugged in.
– When the
PURE DIRECT
mode is switched on.
– When
MULTI CH IN
input is selected.
– When the
HDMI
audio output pa
r
amete
r
is set to
THROUGH
in
Setting the Audio options
on page 71.
SC-LX83_73_DLPW.book 59 ページ 2010年5月19日 水曜日 午後2時7分