Pioneer SC-9540, Operating Instructions Manual

Page: 64 / 138

Listening to your system
06
64
en
Phase Control ON
• Rhythms with c r ystal-like cla r ity
• Bass sound with no loss of de p th
• Sound of musical inst r uments with su p e r b r eality
Phase Cont r ol technology pr ovides cohe r ent sound
r e pr oduction th r ough the use of p hase matching
1
fo r an
o p timal sound image at you r listening p osition. The
default setting is on and we r ecommend leaving Phase
Cont r ol switched on fo r all sound sou r ces.
• Press , then press PHASE CTRL (PHASE
CONTROL) to select PHASE CONTROL.
The indicato r on the f r ont p anel lights.
Using Full Band Phase Control
The Full Band Phase Cont r ol featu r e calib r ates the
f r equency- p hase cha r acte r istics of the s p eake r s
connected.
Standa r d s p eake r s designed exclusively fo r audio use
gene r ally r e pr oduce sound with the divided f r equency
bands out p ut f r om a s p eake r system consisting of
multi p le s p eake r s (in case of ty p ical 3-way s p eake r s, fo r
instance, the tweete r , the squawke r (mid r ange), and the
woofe r out p ut sound in the high-, middle-, and low-
f r equency r anges, r es p ectively). Though these s p eake r s
a r e designed to flatten the f r equency-am p litude
cha r acte r istics ac r oss wide r anges, the r e a r e cases
whe r e the g r ou p delay cha r acte r istics a r e not effectively
flattened. This p hase disto r tion of the s p eake r s
subsequently causes g r ou p delay (the delay of low-
f r equency sound against high-f r equency sound) du r ing
audio signal p layback.
This r eceive r analyzes the f r equency- p hase
cha r acte r istics of the s p eake r s by calib r ating test signals
out p ut f r om the s p eake r s with the su pp lied mic r o p hone,
the r efo r e flattening the analyzed f r equency- p hase
cha r acte r istics du r ing audio signal p layback
2
– the same
co rr ection is made fo r a p ai r of left and r ight s p eake r s.
This co rr ection minimizes g r ou p delay between the
r anges of a s p eake r and im pr oves the f r equency- p hase
cha r acte r istics ac r oss all r anges.
Fu r the r mo r e, the enhanced f r equency- p hase
cha r acte r istics between channels ensu r e bette r
su rr ound sound integ r ation fo r multichannel setting.
3
Note
1 • Phase matching is a ve r y im p o r tant facto r in achieving pr o p e r sound r e pr oduction. If two wavefo r ms a r e ‘in p hase’, they c r est and t r ough
togethe r , r esulting in inc r eased am p litude, cla r ity and pr esence of the sound signal. If a c r est of a wave meets a t r ough (as shown in the u pp e r
section of the diag r am above), then the sound will be ‘out of p hase’ and an un r eliable sound image will be pr oduced.
• The
PHASE CONTROL
featu r e is available even when the head p hones a r e p lugged in.
• If you r subwoofe r has a p hase cont r ol switch, set it to the p lus (+) sign (o r 0°). Howeve r , the effect you can actually feel when PHASE
CONTROL is set to ON on this r eceive r de p ends on the ty p e 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 p lace of you r subwoofe r .
• Set the built-in low p ass 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 s
p eake r distance is not pr o p e 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 the
MULTI CH IN
in p ut is selected.
– When the
HDMI
audio out p ut p a r amete r is set to
THROUGH
in
Setting the Audio options
on p age 82.
F r ont s p eake r
Subwoofe r
Sound
sou
r ce
O r iginal sound
pr ese r ved with no
loss of cla r ity
Listening
p osition
PHASE CTRL STATUS
REMOTE
SETUP
HDD
PGM
DVD
ANT
THX
AUDIO
MULTI OPE
INFO
DISP
MPX PQLS MEMORY
CH
RECEIVER TV CTRL RECEIVER
PHASE CTRL
RECEIVER
2 To calib r ate and analyze the f r equency- p hase cha r acte r istics of the s p eake r s, eithe r follow the
Full Auto MCACC
pr ocedu r e unde r
Advanced
MCACC
(see
Automatically setting up for surround sound (Auto MCACC & Full Band Phase Control)
on p age 42), o r set
Auto MCACC
menu
unde r Auto MCACC unde r Advanced MCACC to Full Band Phase Ctrl . Select ALL when you p e r fo r m the Auto MCACC with Auto MCACC
menu. U p on calib r ation of the f r equency- p hase cha r acte r istics of the s p eake r s, the Full Band Phase Ctrl featu r e is automatically switched
on. Note that FULLBAND PHASE cannot be selected unless the f r equency- p hase cha r acte r istics of the s p eake r s a r e calib r ated.
3 The o r iginal cha r acte r istics of g r ou p delay of the s p eake r s calib r ated and the ta r geted cha r acte r istics afte r co rr ection can be dis p layed
g r a p hically in the GUI sc r een (see Using Full Band Phase Control on p age 64). Also, when you r PC is connected to this r eceive r , the o r iginal
cha r acte r istics of g r ou p delay of the s p eake r s calib r ated and the co rr ected cha r acte r istics of g r ou p delay can be dis p layed in 3-dimension on
you r PC (see
Output PC
on p age 106).
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