Akai EWI 4000S Owner's Manual download pdf (Page 18)

A Quick Tour of UniQuest For EWI 4000s

18 of 44 UniQuest for EWI 4000s

Oscillator Pitch & Volume Envelope Parameters

SWEEP TIME

• Range is 0 to 100%. Unlike a keyboard controlled synthesizer, the EWI 4000s

does not use a standard envelope generator (ADSR) to control the Oscillator

Pitch. Instead, your breath pressure can act as a real-time trigger of a Sweep

whose time to complete is set by this control:

SWEEP DEPTH

• Range is -50% to +50%. Unlike a keyboard controlled synthesizer, the EWI

4000s does not use a standard envelope generator (ADSR) to control the Oscilla-

tor Pitch. Instead, your breath pressure can act as a real-time trigger of a Sweep

whose pitch depth is set by this control. As shown above, negative values cause

the sweep to begin at a lower pitch than original, while positive values cause the

sweep to begin at a higher pitch than original.

BREATH ATTAIN

• Range is 0 to 100%. As well as triggering the sweep, your breath pressure can act

as a real-time controller of the sweep parameters. This parameter modulates the

sweep time as follows:

BREATH DEPTH

• Range is 0 to 100%. As shown above, this parameter modulates the amount of

pitch modulation according to the breath strength: At 100% the Breath Depth is

the full amount set by the Sweep Depth control.

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Akai EWI 4000S Owner's Manual Page 18