The effect editor allows to load an existing effect and modify it, or to create a completely new effect using the available elements.
For all generators, the 'frequency' input determines the generated frequency on the base of 1 volt per octave, with 0V corresponding to the C4 note. Therefore, 1V will be C5, -1V will be C3, and so on. Fractional voltages allow to obtain intermediary frequencies, with 1/12V between each note of the chromatic scale. More precisely, the frequency F is established using the formula F = F0 * 2^('frequency') with F0 = 261.63 Hz (frequency of C4).