[sdiy] Programmable Logic?

[James Patchell]

Actually, this is a subject that kind of fascinates me....although, I have 
not done much research....

Doing an ideal tone wheel simulator is easy, in fact, in a spartan 3 it 
would barely be a hiccup...

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?


At 07:35 PM 7/19/2004 -0500, J. Larry Hendry wrote:
>OK, so how about a DIY Hammond tone generator clone. :)
>Larry H
>
>
>----- Original Message -----
>From: James Patchell <patchell at cox.net>
>To: ASSI <Stromeko at compuserve.de>; <synth-diy at dropmix.xs4all.nl>
>Sent: Monday, July 19, 2004 7:25 PM
>Subject: Re: [sdiy] Programmable Logic?
>
>
>I got a Spartan 3 Eval board for $175, has the equiv of 400K gates, which
>is probably more gates than anybody can imagine.  I estimate one could
>easily put 1024 sine wave oscilators in that thing with a sample rate of at
>least 96KHz, if not 192KHz....
>
>This stuff is powerful....

         -Jim
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