Korg Poly800/EX800 Users

> I recall following the thread on parameter wheel ideas for awhile, tho 
> it does not appear anyone managed to find a solution... this would be 
> the pinnacle of korg mods and make the keyboard infinitely more 
> valuable so I have been using what little knowledge i have to try and 
> thing of a way, was just throwing out this idea, would it be easier to 
> have two knobs, one for increasing the parameter and one for decreasing 
> it? such a setup is probably easier to find than a single knob that 
> works with two circuits... i have no idea myself however, anyone with 
> any suggestions on how to do this please post on the board...
> 
> ~AJB

I designed such a solution:

Starting point: You have a synth that only has + and - Keys for parameter 
changing.

What you want to have: A data dial ("digital potentiometer") that simulates the 
+/- keypresses with a little electronics board.

A friend and I designed such a data dial and I have already installed one in my 
Kawai K3M. We will make it available in a few weeks or months (depands on our 
time).

The problem is that every synths needs other timeouts for the simulated 
keypresses so that the synth reconises them and to allow multiple keypresses 
when you rotate the data dial faster/more steps...
As our solution works with a little 8 pin microcontroller this time can be 
programmed but the problem is that at first this time needs to be evaluated...


Ciao
Peter

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                               Ing. Peter Ullrich   
	               Hardware & Software Developer  /  Electronic Musician
                               Private Homepage: http://www.ullrich.at.tt
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