MOTM

Shepard tones require 8 or more phase locked triangle and sawtooth waves
driving 8 oscillators and amplifiers.  MOTM and no other modular that I know
of has phase locked LFOs, though Doepfer has a dedicated Shepard Function
generator, model A-191.  The magazine Polyphony (now Electronic Musician)
had a design and maybe even a kit ages ago to create the phase locked
control voltages, but you still needed 8 VCOs and VCAs to complete the
effect.

The effect is not limited to infinite pitch effects, you can use if for
infinite phasing and other effects as well.

John Loffink
microtonal@...

>
> Does anyone know how to patch existing MOTM modules to create the
> Shepard Function "Barber Pole" effect? Or any other non-repeating
> patches? I like listening to my synths play themselves...
>