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Doepfer

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Re: A149, total random possibilities patch

2003-12-10 by shm1400

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

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