User guide

Modulation
13 Programming -Modulation
Polyphonic
Section
VCO1
VCO2
Mixer
Filter
(VCF)
Amp
(VCA)
Modulation
Sources
Control Signal
Audio Path
Pitch bend
LFO
Any Gigmate patch has two main characteristics which can be ‘tweaked’ while a note is being played;
pitch & filter cut-off frequency.
The modulation section of the Gigmate provides a number of facilities to control these characteristics,
including a ‘low frequency oscillator’ (LFO) and portamento slider (Glide).
Just like the Gigmate v2’s main oscillators, the low frequency
oscillator (LFO) creates waveforms. You can select from three
different wave-shapes; triangle, square and random. Unlike, the
main oscillators, the LFO is not influenced by which key has been
depressed; the frequency is controlled by the slider labeled
‘RATE’ and it can go down to sub-audible frequencies.
The purpose of the LFO is to provide a cyclic control output
which can be used to affect pitch & cut-off.
The two left hand sliders send LFO output to the VCOs pitch and
filter cut-off frequency respectively. Using the Modulation Wheel
also will bleed some LFO through to the oscillator pitches.
When set to ‘in’ the Gigmate’s envelope gets triggered every
time the LFO completes a cycle, rather then when a key is
depressed.
GLIDE: this provides a monophonic portamento effect, where pitch drifts to the next key pressed rather than
instantly changing pitch.
Please note: the Polyphonic Section does NOT respond to pitch modulation, other than the keyboard
and bender.