Operation Manual

4.9 The Multi-Effect Module 31
4.9 The Multi-Effect Module
The Multi-Effect module allows one to process the
signal from the synthesizer before sending it to the out-
put. There are two identical sets of effects which can
be applied in series. These effects are switched On or
Off by clicking on the switch located in their top left
corner.
The effects are selected from the drop-down menu at the top of the module. Available effects
include three different types of delays (ping pong, digital and tape), chorus, flanger, phaser, auto
wah, wah wah, notch filter, a 3-band equalizer, three different types of distortion, a tremolo and a
three different reverbs.
The different effects can be synchronized to the clock of a host sequencer using the Sync drop-
down menu. Sync values range from 1/8 of a quarter note (a thirty-second note) to 16 quarter notes
(4 whole notes) where the duration of the whole note is determined by that of the sequencer clock.
The effect can also be synced to a triplet (t) or dotted note (d).
Each of the effects can be controlled using three offset knobs. When in their center position,
the effect is adjusted according to the factory settings. Turning the knobs to clockwise or anti-
clockwise allows one to deviate from this default setting as described below.
4.9.1 Delay
The Multi-Effect module includes 3 different types of delay effects: Ping Pong, Digital and Tape
Delay. The Digital delay consists in a standard delay line with feedback. The tape delay is similar
but also includes a low-pass filtering effect in order to simulate the attenuation of high frequencies
in analog tape delays. The Ping Pong delay is based on two delay lines resulting in a signal traveling
from one stereo channel to the other, each time attenuated by a coefficient.
The Wet knob is used to adjust the amount of “wet” signal present in the output signal from the
effect. When the knob is adjusted in the left position, only the original or “dry” signal is sent to the
output. Turning this knob clockwise increases the amount of processed or “wet” signal sent to the
output. In its rightmost position, only “wet” signal is present in the output signal. The Feed knob
is used to adjust the amount of signal re-injected into the delay lines or in other word the amount
of feedback introduced in the line. In its leftmost position, there is no signal re-introduced and the
effect module only delays the input signal. Turning this knob clockwise increases the amount of
signal reflected back at the end of the line. Finally the Time knob controls the length of the delay
lines and therefore the delay between echoes.
4.9.2 Chorus
The Multi-Effect module includes both a mono and stereo Chorus effect. A chorus effect is used
to make a source sound like many similar sources played in unison.