Pioneer SC-LX71, Руководство по эксплуатации

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The Advanced MCACC menu
07
50
En
The g r a p h below shows the diffe r ence between
conventional acoustic calib r ation and pr ofessional
calib r ation (the g r ay ci r cle indicates the p oint whe r e the
mic r o p hone ca p tu r es sound du r ing f r equency analysis).
As soon as audio is out p ut f r om you r s p eake r system, it
is influenced by r oom cha r acte r istics, such as walls,
fu r nitu r e, and the dimensions of the r oom. The soone r
the f r equency analysis, the less it is influenced by the
r oom. We r ecommend an ea r lie r time setting of
30~50ms to com p ensate fo r two majo r facto r s that will
influence the sound of most r ooms:
•
Reverberance of high vs. low frequencies
–
De p ending on you r r oom, you may find that lowe r
f r equencies seem ove r ly r eve r be r ant com p a r ed to
highe r f r equencies (i.e. you r r oom sounds ‘boomy’).
This may r esult in a skewed f r equency analysis if the
measu r ement is done too late.
•
Reverb characteristics for different channels
–
Reve r b cha r acte r istics can be somewhat diffe r ent fo r
each channel. Since this diffe r ence inc r eases as the
sound is influenced by the va r ious r oom
cha r acte r istics, it is often bette r to ca p tu r e a
f r equency analysis ea r ly on fo r smoothe r mixing of
channel f r equencies/sounds.
If you r r oom isn’t affected by the facto r s above, it is often
not necessa r y to make a 30~50ms setting. Late r time
settings may pr ovide a mo r e detailed sound ex p e r ience
with you r s p eake r system. It is best to t r y and see what
wo r ks best fo r you r p a r ticula r r oom.
Note that changing the r oom (fo r exam p le, moving
fu r nitu r e o r p aintings) will affect the calib r ation r esults.
In such cases, you should r ecalib r ate you r system.
Using Acoustic Calibration EQ Professional
1 Select ‘EQ Professional’, then press ENTER.
2 Select an option and press ENTER.
• Reverb Measurement – Use this to measu r e the
r eve r b cha r acte r istics of you r r oom (fo r g r a p hical
out p ut using a PC, see Connecting a PC for Advanced
MCACC output
on p age 69 to connect an RS-232C
cable befo r e selecting this o p tion).
•
Reverb View
– You can check the r eve r b
measu r ements made fo r s p ecified f r equency r anges
in each channel.
1
• Advanced EQ Setup – Use this to select the time
p e r iod that will be used fo r f r equency adjustment and
calib r ation, based on the r eve r b measu r ement of
you r listening a r ea. Note that customizing system
calib r ation using this setu p will alte r the settings you
made in
Automatically setting up for surround sound
(MCACC & Full Band Phase Control) on p age 9 o r
Automatic MCACC (Expert)
on p age 44 and is not
necessa r y if you’ r e satisfied with these settings.
3 If you selected ‘Reverb Measurement’, select EQ
ON or OFF, and then START.
Level
Test tone
Acoustic Cal. EQ P r o.
calib r ation r ange
Conventional MCACC
EQ calib
r ation r ange
Time
(in msec)
80 160
Level
Low
f
r equencies
Acoustic Cal. EQ P r o.
calib r ation r ange
Time
(in msec)
0 80 160
High
f
r equencies
Conventional MCACC
EQ calib
r ation r ange
Level
Left
su
rr ound
Acoustic Cal. EQ P r o.
calib r ation r ange
Time
(in msec)
80 160
Right
su
rr ound
Conventional MCACC
EQ calib
r ation r ange
Note
1 If the Reverb View pr ocedu r e is p e r fo r med afte r the Automatically setting up for surround sound (MCACC & Full Band Phase Control) on p age 9
o r Reverb Measurement o p e r ation, de p ending on the standing wave cont r ol setting, diffe r ences may a pp ea r on the r eve r b g r a p h. With the
Auto MCACC function, the r eve r be r ations a r e measu r ed with the standing waves cont r olled, so the r eve r b cha r acte r istics g r a p h shows the
cha r acte r istics with the effect of the standing waves eliminated. By cont r ast, the Reverb Measurement function measu r es the r eve r be r ations
without cont r olling the standing waves, so the g r a p h indicates the r eve r b cha r acte r istics including the effect of the standing waves. If you wish
to check the r eve r b cha r acte r istics of the r oom itself (with the standing waves as such), we r ecommend using the Reverb Measurement
function.
1. Fine Channel Level
2. Fine SP Distance
3. Standing Wave
1c.Manual MCACC
4. EQ Adjust
5. EQ Professional
A/V RECEIVER
Exit Return
a. Reverb Measurement
b. Reverb View
c. Advanced EQ Setup
1c5.EQ Professional
A/V RECEIVER
Exit Return
MCACC : M1.MEMORY 1
1c5a.Reverb Measurement
A/V RECEIVER
Exit Cancel
START
Reverb Measure with : EQ OFF
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