I like to use a control voltage to determine the density of events
occurring against a basic rhythmic foundation: Sample the output of
a random voltage generator with a sample & hold clocked with an
LFO. Then send the resulting clocked random voltages to a mixer,
and mix with a fixed voltage and some kind of control voltage. The
output of the mixer is sent to the control input of a voltage
controlled switch. The voltage controlled switch is used to gate
the square wave output of the same LFO you used to clock the sample
and hold.

Now, you have square wave that can be used as a trigger or gate.
The density of the events it is triggering is controlled by the
level of the control voltage sent to the mixer input and the
attenuation of the gated random voltage. An envelope can create a
process that becomes more or less dense over time, while another,
slower moving random signal would create random event density. The
events themselves could be random, or pre-determined, such as a tone
row from a sequencer.

--- In Doepfer_a100@yahoogroups.com , "Bilinger" <x2wm@h...> wrote:
> Because basically I am very interested in making such a random
patch.
> let's say I want to just send something to vco-pitch; and make
> something really random. By random i mean, maybe it goes ffrom
really
> quiet sometimes, slow, suddenly maybe active and chaotic like, and
> then slow again, then maybe accelerating... so I am trying to use
also
> A150 to change the trigger for the A149. before triggering the
A149 i
> put A150. In the A150 I can put two different A147, each of them
with
> different random (A148-117) in cv in. then it becomes more random
> like. but i want to go really much further, maybe by using an, nor
or
> exor function.
> mmmmh, I am working on this.
> also, few months ago I was one amongst few to ask for manual gate
> module. What I do is I use the gate from A178 (theremin), to make
the
> pitch of vco really really treble. You can "lock" the gate with
the
> offset of the tehreim module, so gate is always one to control
pitch
> of vco. then I do the random stuff to the very high frequency A111.
> I think a manual gate would be more practical than using this
theremin
> which sometimes is a bit of a drag when playing live, antenna is
not
> so much practical.
> sorry, long message
> alexandre - french lucky guy, we