Pioneer SC-LX82 Manuel d'utilisateur télécharger pdf (Page 112)

The Advanced MCACC menu

112

• Freq / Q / ATT – These are the filter parameters where

Freq represents the frequency you will be targeting

and Q is the bandwidth (the higher the Q, the

narrower the bandwidth, or range) of the attenuation

(ATT, the amount of reduction to the targeted

frequency).

3 When you’re finished, press

RETURN

You will return to the Manual MCACC setup menu.

Acoustic Calibration EQ Adjust

•Default setting: ON

/0.0dB (all channels/bands)

Acoustic Calibration Equalization is a kind of room

equalizer for your speakers (excluding the subwoofer). It

works by measuring the acoustic characteristics of your

room and neutralizing the ambient characteristics that

can color the original source material (providing a ‘flat’

equalization setting). If you’re not satisfied with the

adjustment provided in Automatically setting up for

surround sound (Auto MCACC & Full Band Phase Control)

on page 45 or Automatic MCACC (Expert) on page 107,

you can also adjust these settings manually to get a

frequency balance that suits your tastes.

1 Select ‘

EQ Adjust

’ from the

Manual MCACC

setup

menu.

2 Select the channel(s) you want and adjust to your

liking.

Use / to select the channel.

Use / to select the frequency and / to boost or

cut the EQ. When you’re finished, go back to the top of

the screen and press  to return to Ch, then use / to

select the channel.

•The OVER! indicator shows in the display if the

frequency adjustment is too drastic and might

distort. If this happens, bring the level down until

OVER! disappears from the display.

Tip

• Changing the frequency curve of one channel too

drastically will affect the overall balance. If the speaker

balance seems uneven, you can raise or lower channel

levels using test tones with the

TRIM

feature. Use

/



to select

TRIM

, then use

/

to raise or lower the

channel level for the current speaker.

3 When you’re finished, press

RETURN

You will return to the Manual MCACC setup menu.

Acoustic Calibration EQ Professional

This setup minimizes the unwanted effects of room

reverberation by allowing you to calibrate your system

based on the direct sound coming from the speakers. It

can also provide you with a graphical output of the

frequency response of your room.

How to use Acoustic Calibration EQ Professional

If you find that lower frequencies seem overly reverberant

in your listening room (i.e. it sounds ‘boomy’), or that

different channels seem to exhibit different reverb

characteristics, select EQ Pro & S-Wave (or ALL) for the

Auto MCACC setting in Automatic MCACC (Expert) on

page 107 to calibrate the room automatically. This should

provide a balanced calibration that suits the

characteristics of your listening room.

If you still aren’t satisfied with the results, the manual

Advanced EQ Setup (below) provides a more

customized calibration of your system using the direct

sound of the speakers. This is done with the help of a

graphical output that can be displayed on-screen, or

using a computer (with software available from Pioneer

— see Output PC on page 117).

How to interpret the graphical output

The graph shows decibels on the vertical axis and time (in

milliseconds) on the horizontal axis. A straight line

indicates a flat-response room (no reverb), whereas a

sloping line indicates the presence of reverberation when

outputting test tones. The sloping line will eventually

flatten out when the reverberant sound stabilizes (this

usually takes about 100 ms or so).

Note

1 You can switch on or off the Acoustic Calibration EQ feature in the AUDIO PARAMETER menu. See Setting the Audio options on page 85 for

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Pioneer SC-LX82 Manuel d'utilisateur Page 112

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