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creating Bernoulli Gates with something like Maths?
MUFF WIGGLER Forum Index -> Modular Synth General Discussion  
Author creating Bernoulli Gates with something like Maths?
zerodivide
Curious if its possible to mimic a Bernoulli Gate with Maths or something similar
cptnal
If you randomly modulate rise and/or fall the End-Of-Whatever gate will do the trick. Probability is decided by their starting positions. You can adjust the randomness by putting it through one of the middle channels first. w00t
zerodivide
ah so patch EOC from 1 channel to the Cycle of another? so they "talk" to each other?
luketeaford
cptnal wrote:
If you randomly modulate rise and/or fall the End-Of-Whatever gate will do the trick. Probability is decided by their starting positions. You can adjust the randomness by putting it through one of the middle channels first. w00t


This doesn't quite work for me-- it's a good approximation, but it can create retriggers or it delays the clock pulse and in any case the clocks have different widths. I tried the flip flop patch in the manual which also doesn't quite work for the same reasons. It's close, but not being mutually exclusive makes it not suitable for my purposes. I think it might be possible though: I have gotten some decent runs from these strategies. Let me know if you think of something!
luketeaford
zerodivide wrote:
ah so patch EOC from 1 channel to the Cycle of another? so they "talk" to each other?


Did you see my patch in the Tempi megathread about how to do it with Tempi? It's a lot easier and more reliable-- you can even get four channels of mutually exclusive gates each with 25% probability.
cptnal
Yeah, I'm probably thinking in terms of Branches' gate mode where it's open or closed, as opposed to trigger one or trigger two. It is an interesting challenge though... hmmm.....
luketeaford
I think I figured out how to do it. The trick is to use the gate extractor and logic invertor patches from the manual. The logic to invert is EOR from channel 1.

I think it's a little more interesting to use channel 3 as the comparator and set channel 2 negatively because you get a slightly wider range which I think you may want with the wogglebug. This gives you 3 controls to work out the probability balance.

Here are some demos of the Bernoulli gates patch:

First go using VCAs to retrigger both gates: https://www.instagram.com/p/Br2ubdNhETx/

Second version not retriggering until the gates flip:
https://www.instagram.com/p/Br2vmI1BwZB/

Third version retriggering one channel and firing the other one once WITH live patching probability adjustment:
https://www.instagram.com/p/Br2wIMIBCXH/
cptnal
we're not worthy

Miles ahead as ever. Tomorrow's project. thumbs up
luketeaford
Thanks! It's a really cool patch actually and one that makes a great jumping off point because there's still a LOT to do with those two gates and all the decisions you make within a modular with that.
zerodivide
luketeaford wrote:
I think I figured out how to do it. The trick is to use the gate extractor and logic invertor patches from the manual. The logic to invert is EOR from channel 1.

I think it's a little more interesting to use channel 3 as the comparator and set channel 2 negatively because you get a slightly wider range which I think you may want with the wogglebug. This gives you 3 controls to work out the probability balance.

Here are some demos of the Bernoulli gates patch:

First go using VCAs to retrigger both gates: https://www.instagram.com/p/Br2ubdNhETx/

Second version not retriggering until the gates flip:
https://www.instagram.com/p/Br2vmI1BwZB/

Third version retriggering one channel and firing the other one once WITH live patching probability adjustment:
https://www.instagram.com/p/Br2wIMIBCXH/


wow nice one! will try this asap
zerodivide
luketeaford wrote:
zerodivide wrote:
ah so patch EOC from 1 channel to the Cycle of another? so they "talk" to each other?


Did you see my patch in the Tempi megathread about how to do it with Tempi? It's a lot easier and more reliable-- you can even get four channels of mutually exclusive gates each with 25% probability.


did not cause I don't own Tempi. Only Pam's NW
BenA718
Wow, that's some stellar problem-solving right there! This thread reminded me how much I LOVE Branches; not that I needed reminding, I think I work it into just about every patch that I make! smile

Today I used Branches and Dynamix's LPG to randomly transpose my Quantimator; it was sooo mechanical, random, and 80s sounding. Fantastic stuff!

There seems to be no end of uses for adding Branches' randomness to certain parameters; sometimes I end up using all four outputs to wiggle all sorts of stuff!
luketeaford
Yeah, I have found Bernoulli gates surprisingly useful. My first patches with this I tended to use the gates for related things like striking either channel of an optomix. It's even a little bit more interesting to use them for unrelated things like one triggers a S&H and the other advances a sequencer or toggles a switch or something.
BenA718
luketeaford wrote:
Yeah, I have found Bernoulli gates surprisingly useful. My first patches with this I tended to use the gates for related things like striking either channel of an optomix. It's even a little bit more interesting to use them for unrelated things like one triggers a S&H and the other advances a sequencer or toggles a switch or something.

Totally agree! You can take the output and just start putting in places where you would like some randomness and it can range from very subtle to very unsubtle!
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