Possibly goofy idea...

[Theo]

That is not realy a special fearure of the SH101.
It works with anny synt that has self occilating filters and the capability
to route KV to cutoff.
(setting keyboard tracking to 100% is a work around to do this on a non
patcheble instrument)
The result is that the filter works as a sinus VCO.

While most VCO only "read" the CV once pro period (a ramp crossing a
tresshold set by CV)
a VCF acting as a sine VCO continously follows CV.
Just what you need to do DX style FM.
A normal VCO can be the modulator, the VCF the carrier.

O'cause this works only if you can patch both KV and VCO output to filter
cutoff.
Best route the VCO thru a VCA first.

Cheers Theo.


----- Original Message -----
From: Dan Gendreau <gendreau at rochester.rr.com>
To: <chordman at flash.net>; synthDIY <synth-diy at node12b53.a2000.nl>
Sent: Wednesday, May 10, 2000 5:23 PM
Subject: RE: Possibly goofy idea...


> > I haven't seen this one (but that doesn't mean it doesn't exist)...
> From what you describe, I believe the Roland SH-101 does part of this. The
> only thing it wont allow you to do is control the VCO from a separate
> source...
>
> The SH101 allows you to route some amount(0-100%) of the Keyboard CV into
> the filter cutoff CV. When it is set to 100% KCV->VCF Cutoff and you turn
> off the VCOs and put the VCF Resonance into self oscillation you get a
sine
> wave oscillator that tracks the pitch of the keyboard.
>
> I wouldnt bother creating a custom keypad for this. You should be able to
> just take a standard analog keyboard or Midi/CV source and route the pitch
> CV into your Fatman Filter Cutoff CV.
>
> Just a thought,
> -Dan G.
>
>
>