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How to operate the sound adjustment mode, About sound adjustment mode, About parametric eq – Eclipse - Fujitsu Ten CD3100 User Manual

Page 40

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40

Various Settings

How to operate the Sound Adjustment Mode

About Sound Adjustment Mode

The system has several features that allow you to adjust the acoustic characteristics inside the
cabin.

About parametric EQ

A variety of materials are used inside a vehicle to manufacture the seats and windows, and because
these materials absorb and reflect sound in different ways, the parametric equalizer lets you adjust
the peaks and dips of the frequency characteristics inside the vehicle to compensate for this.

An "equalizer" is a function that corrects these peaks and dips in order to flatten the frequency
characteristics. However with a normal graphic equalizer, the median frequency and the Q
(sharpness and band width) are fixed, so that when neighboring bands are corrected, there is a limit
to the amount by which distortion in the peak and dip characteristics can be corrected. A "parametric
equalizer" lets you adjust the median frequency, Q (sharpness and band width) and gain to variable
levels, so that you can make fine adjustments to spot areas of the frequency band.

[Parametric equalizer characteristics]

1. Median frequency can be varied.

2. Gain can be varied.

Item

Function

Page

Parametric EQ

Three bands, frequency level, and Q curve can be adjusted.

42

Cross over

Allocate specified frequency bands to each speaker for improved sound
integration.

43

Non-fader phase

Change phase of the sub-woofer.

43

Peak

High

[Sound pressure]

Low

Dip

Low

[Frequency]

High

High

[Sound pressure]

Low

Low

[Frequency]

High

High

[Sound pressure]

Low

Low

[Frequency]

High