6 Modulation
Modulation is fundamental to synthesis, and there are numerous sources and destinations for modulation values. The typical modulation sources include low frequency oscillators (LFOs), envelope generators (EGs), MIDI CCs, velocity, and note number. The output values are applied to modulate or change the destination’s parameters. Typical destinations are pitched oscillator frequency, output amplitude, shape and filter fc, Q, and drive. It is also possible for one modulator to modulate another: for example, one LFO may modulate the other LFO’s oscillation frequency. Modulators have two general output types: unipolar on a range of [0, 1] and bipolar on a range of [−1, +1]. A modulation routing is a specific ...
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