MOTM

The oscilators on my MOTM never drift, and that is very nice, except when
I want them to drift around.  I put the random output of the SH101 module
into an oscillator FM in, but it's just not the same.  Randomness tends to
still center around zero and doesn't get into long drifts.  What is needed
is some sort of accumulative module.

This module will have knobs controlling the speed of the drifting and
whether it has an upward or downward tendency.  What happens is that the
module outputs some DC voltage.  Periodically, depending on the speed
setting, it will look at some randomness and add or subtract some number
of milivolts from it's output depending on what the random number was.  It
will then ramp it's output up or down to the new value.

With a 2 u module, you ought to be able to get 4 or more drift outs to
route to ocillators and filters.

Super bonus feature - a "warm-up" drift.  Drifting varies based on time
since module was reset, in a way that mimics "real" drift.

I have a little MAX patch that mimics drifting for me, but it seems like
there  ought to be a nice harware solution, and I have more important data
for my MIDI/VC convertor to crunch.

TIA,

Celeste, who doesn't have enough money for a Moog to solve this problem...

--
Celesteh@...     http://www.casaninja.com/celesteh
                                 http://www.mp3.com/celesteh