User's Manual

35
Mutants 1–4
Each of the Mutant modules is identical so we will describe them all at the same time. They are
arranged in pairs: two for Oscillator 1 and two for Oscillator 2. Depending on the selected mode,
the output of one of the Mutants in a pair can be fed into the next Mutant and/or into any other
Mutant, including itself. In some modes the Mutants are dedicated to the oscillators with which
they are paired.
The rst edit eld of the Mutant module selects the mode. There are seven:
Mode Description
FM-Lin Modulate the oscillator frequency with the selected Source
WavStack Adds phase-shifted copies of the waveform; simulates many oscillators using
only one
OSC Sync Force the harmonics of the oscillator to synchronize with those of the selected
Source
PW-Orig Classic method of adjusting the pulse width of a waveform
PW-Sqeez Time-compressed pulse width modulation method
PW-ASM Customizable pulse width modulation via FM; targets specic sections of the
waveform
Harmonic Emphasizes individual harmonics in the waveform, de-emphasizes all others
FM-Lin
This module provides a type of synthesis known as Linear FM (Frequency Modulation). Each
voice is the equivalent of a 2-operator stack, with a carrier and a modulator. Unlike the most
famous synth of the mid-1980s, which used only sine waves, the Hydrasynth can use any of its
219 waveforms as both the carrier and the modulator. The FM Source can also be generated by
the Mutant itself (Sine or Triangle), another Mutant module, or the CV inputs (Mod In 1 or Mod
In 2).
FM-Lin parameter Range Description
Source Sine, Triangle, Osc 1-3, Ring Mod,
Noise, Mutant 1-4, Mod In 1, Mod
In 2
Selects the FM source
Ratio 0.250-64.000 in varying
increments
Relative tuning of Source & oscillator
(Source = Sine or Triangle only).
Hold [SHIFT] to jump by harmonics.
Depth 0-128 in increments of 0.1 FM input level to the oscillator
Feedback 0-150% Feeds the FM output back into itself
Dry/Wet 0-100% Oscillator/Mutant blend; 100% = pure
Mutant
Mod In 1 and 2 can process audio-rate input frequencies, so it’s possible to use an
instrument or an audio feed as an FM source in the Mutant module. Note that this works
best with mono mode. It is not possible to dissect polyphonic audio and assign each
part to individual voices.