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A Short Overview
27
Iridium Keyboard Quickstart
The Kernel Synthesis Mode
=
Press
the
Wavetable
and
Wave-
form
button
simultaneously to activate the Kernel mode for the
corresponding oscillator 1, 2, or 3. The whole oscilla-
tor section lights up in pink.
So what, exactly is Kernel synthesis? Simply speaking, it is
a modular approach in which up to six audio kernels can
be freely combined into a single oscillator. Effectively, each
kernel is an oscillator in its own right, realising a whole
range of timbres – from using sine and classic waveforms
via wavetables and noise. For example, users could combi-
ne wavetables, a sine wave, and noise within a single oscil-
lator.
On top of that, the kernels could modulate each other in
audio rate using a variety of modulation methods, such as
amplitude, frequency, phase, and ring modulation. Phase
Distortion is also possible alongside unusual processes like
audio rate wavetable-position modulation. Moreover, each
kernel, of course, could also add self-modulation like clas-
sic FM feedback.
Furthermore, each kernel has its own multi-stage envelo-
pe, stereo output panning, plus multiple modulation opti-
ons for velocity, key-tracking, plus presenting feedback,
level, pitch, and wavetable position as modulation tar-
gets. It is like having a modulation matrix within a kernel.
Meanwhile, kernel pitch can be set in relation to note pitch,
as well as being set to fixed frequency in audio or LFO
range. Pitch envelopes could be also applied to each kernel
individually using the Modulation Matrix.
It is perfectly possible, then, to view Kernel synthesis as an
oscillator construction kit, allowing for traditional approa-
ches like a six-operator FM synth, as well as providing an
experimental space for future-facing synthesis techniques.
g
Here is a short explanation how to explore
kernel mode:
1) Choose “Init” from the
Load
page.
2) From Osc1 Control page choose VCA or DF100
Fil 0 as “Osc1 Dest” for stereo fun.
3) Press
Wavetable & Waveform
buttons simul-
taneously to put Osc1 in kernel mode.
4) Choose from top left “Templates” menu any item
you like.
5) Each template assigns the 5 OSC 1 pots to indivi-
dual sound shaping parameters.
6) Turn knobs and make sound.
7) Choose another template.
8) Get lost!
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