fourMulator is a digital quad LFO-module for euro rack compatible modular synthesizer and sound processing systems. Due to its ability to synchronize the modulators (LFOs) to each other or to an overall clock-reference, fourMulator is capable generating complex and rhythmic modulation structures.
Each modulator offers six wave forms: ascending and descending saw tooth, square, triangle, sine and random (sample & hold) with a frequency range between 0.05Hz (20 seconds) to approx. 100Hz. Each modulator offers wave form and trigger outputs, the latter sending an impulse with every new start of the selected wave form. Reset- and CV-inputs allow external parameter manipulation - from other modules or from other modulators of the fourMulator itself.
All four modulators work independently. However, they can be synchronized with each other. Each modulator can be individually synchronized to the left neighboring module or to a clock-reference.
Two or more synchronized modulators always oscillate at the same frequency. However, a synchronized modulator can be phase-shifted by up to 180° (a half-cycle) to the clock-reference. This allows easy creation of counter-rotating modulations. More complex modulations can be achieved using the CV-input to manipulate phase-shift.
With active clock-synchronization, the corresponding modulators oscillate in reference to a common clock-signal, but use individual clock-dividing factors. Again, advanced possibilities result from being able to manipulate clock-division through the modules' CV-inputs.
Both forms of synchronization can be combined. With one modulator being synchronized to a clock signal, it may as well serve as reference to the right neighboring modulator.
CLOCK Generator (CLK)
fourMulator integrates an internal clock generator. Its tempo can be assigned using a tap-tempo-button or by using an external clock-reference.
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