[sdiy] Programmable Logic?

J. Larry Hendry jlarryh at iquest.net
Tue Jul 20 03:05:51 CEST 2004


> ----- Original Message -----
> From: James Patchell <patchell at cox.net>
> Doing an ideal tone wheel simulator is easy, in fact, in a spartan 3 it
would barely be a hiccup...

Easy for you. :)  I know nothing (in my best Sergeant Shultz voice)

> The problem is the phase jitter...after all, the tone wheel generator is a
collection of cogs that do the frequency divisions to get all of the pitches
you need, and the gears do not really do a very good job of that,  really,
however, most people seem to feel (me included), that this is what makes a
Hammond organ sound the way it does.  So, the big question is, how do you
simulate the non- ideal nature of the tone generator? <<

That is the question.  How much of "this and that" is needed. :)  It is
certainly an interesting discussion for me.
Larry H




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