[sdiy] 1-2-4 !

[jbv]

> Basically the idea is to recover the original signal at the demodulator
> output, but also to add some "ghost partials"...
> I guess the number of parameters to modify might be larger...

just crossed my mind :

- use a sine of the same freq on both modulator & demodulator,
but do different FM on each
- use the same freq & WF on both, but process each through a
different waveshaper

etc etc

JB