User manual

Table Of Contents
35
Prophet-10 User’s Guide
Poly Mod
You can control how much the source affects the destination by dialing in
a specic modulation amount with the filter env or osc b knobs.
Use Poly Mod to create complex harmonic effects ranging from FM
(frequency modulation) to audio-rate lter modulation and beyond. Many
classic sounds on the original Prophet-10 were created through clever use
of Poly Mod.
Poly Mod Parameters
Filter Env: Selects the amount of modulation from the Filter Envelope
that is applied to a selected destination.
Osc B: Selects the amount of modulation from Oscillator B that is
applied to a selected destination.
When using osc b as a modulation source, the modulation character is
affected by the waveshape currently chosen for Oscillator B (triangle, sawtooth, or
square/pulse). Try setting Oscillator B to low frequency (using the lo freq switch) to
further increase modulation possibilities.
Freq A: Selects Oscillator A frequency as a modulation destination.
Choose osc b as a modulation source to produce FM (frequency modu-
lation) effects with their characteristic complex harmonics and metallic
timbre.
PW A: When Oscillator A is set to square wave, choosing this as a desti-
nation modulates its pulse width. This will animate the timbre of Oscillator
A in interesting ways.
Filter: Selects the Filter cutoff frequency as a modulation destination.