Akai EWI 4000S Owner's Manual download pdf (Page 20)

A Quick Tour of UniQuest For EWI 4000s

20 of 44 UniQuest for EWI 4000s

2.2.4 OSC FILTER SECTION

SELECT

• Choices are 1, 2 or LINK. When 1 is selected, the block of controls in this

section govern the settings of OSC FILTER 1. When 2 is selected, these controls

govern the settings of OSC FILTER 2. LINK mode is now explained.

The Oscillator Filter section consists of 2 multi-mode filters that are connected in

serial with each other. Each filter can be set individually or can be linked to realize a

double-strength filter whose parameters are set by filter 1’s controls:

The following parameters are common to each filter:

Main Filter Parameters

MODE

This control changes the filter’s basic type:

• OFF: Filter is off, incoming signals are passed unchanged.

• NTC: Notch - Removes a band of signal content around the filter cutoff

frequency. This signal is therefore ‘notched’.

• BP: Band Pass - Removes signal content except for a band around the filter cut-

off frequncy. This band is allowed to pass unchanged.

• HP: High Pass - Removes signal content below the filter cutoff frequency. High

frequencies are allowed to pass unchanged.

• LP: Low Pass - Removes signal content above the filter cutoff frequency. Low

frequencies are allowed to pass unchanged.

FREQ

• Range is 65.5 Hz to 10.5 kHz. This control sets the cutoff frequency of the OSC

FILTER.

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Akai EWI 4000S Owner's Manual Page 20