Through-Zero FM

[Martin Czech]

> Linear through-zero FM is the essence of the very popular Yamaha DX
> synthesizers which everyone is familuar with. The capability to go


?
Yamaha always uses PM, it has some advantages over FM:
e.g. constant phase modulation for all ratios.
We can't really do PM in our analog modules.
(Anyone ??)

So , don't expect an analog synth to sound like a 2 or 3 OP
DX7, or TG77 etc.

For sine shaped carriers and modulators and fixed parameters
(steady state) you can allways get the same spectra , regardlesss
of PM or FM. 

If one of these assumptions is not valid, you'll NOT.

m.c.