User Manual

Vo l u um

Owner’s Manual

The diagram below shows examples of the different shapes of waveforms, selected using the ShP

parameter. The random waveform takes a different random value every cycle (the cycle is defined

by the bPM and div parameters).

Sinusoid (sine) waveforms are well-suited to tremolo effects, and often result in the most natural

sound, and is usually the best starting point for exploring the

LFO

effect.

The square waveform has a variable duty cycle (dty), or pulse-width, which sets how long the

waveform remains at its maximum value compared to its minimum value. When dty is 50, the

waveform is symmetrical (square), whereas at its limits the waveform is always at its minimum (dty

= 0) or maximum (dty = 100) value. This can be used to emulate the sound of a kill-switch,

particularly when you control dty using the pedal.

The trapezoidal waveform is highly configurable: examples of trapezoidal waveforms are shown

below. In the V oluum, the shape of the trapezoid is controlled by the parameters ramp up (r.uP) and

ramp down (r.dn), referring to the left and right sides of the waveforms shown. One cycle of the

SEn no −30–30·0

Envelope sensitivity in dB.

Only available with envelope control.

CtL no 0–127

MIDI

controller for

LFO

. Only available with

MIDI

control.

Parameter Controllable Range Description

triangular

square saw up

saw down trapezoid

sinusoid

example of random