About Parametric Eq - Eclipse AVX5000 Owner's Manual

Item
Harmonizer
Loudness
E-iSERV Sound Effect
Customizations
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.
When original sounds are converted to a MP3/WMA
format, frequency ranges that are not normally audible to
the human ear are compressed. The harmonizer can be
used to play back these compressed sounds at as close to
their original form as possible so that clear and powerful
sound can be enjoyed.
The loudness control may be turned on the emphasize low
and high frequencies at low volume levels. Loudness
compensates for the apparent weakness of low and high
frequencies at low volume by boosting the bass and treble
levels.
Download sound adjustment data from the ECLIPSE
website (E-iSERV) that matches the vehicle's interior and
store it in the unit.

About parametric EQ

High
[Sound pressure]
Low
Low
Function
Peak
Dip
[Frequency] High
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