Dual Probabilistic Clock Divider

colinsullivan · February 22, 2021, 4:45am

Dual Probabilistic Clock Divider

Greetings,

This is a script for Crow which allows switching between two clock divider divisions for all of the outputs, as well as setting the probability that the output gates will occur.

On each input clock, a chance operation is performed that determines if the output gates will happen or not. The slider determines the probability.

So the underlying mechanism is a clock divider, however the result is not a clock divider, it is randomly occuring gates that happen in time at that clock division!

This is all for now, just something I wanted and saw the path to achieve with Crow. Does this remind you of something else? I’d love to know.

Requirements

Crow, clock input, bipolar offset for 2nd input

Documentation

See the code? :-o

The clock divisions are hard-coded.

Download

gist.github.com

https://gist.github.com/colinsullivan/a7d6f0c03379940bde8ae7fc606f0e7f

prob_divider.lua

--- two-way probabalistic clock divider
-- This takes a clock input and a -5 to +5 voltage.  Both 0 to +5V and 0 to -5V
-- represent 0% to 100% probability of clock outputs.  Positive and negative
-- voltage switches between two sets of clock dividers.
--
-- in1: clock input
-- in2: bi-polar probability
-- out1-4: divided outputs

-- when probability input is positive, the output clocks will be at these divisions

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toomanatees · February 22, 2021, 1:52pm

This looks fun and useful, what happens when no voltage is present at input 2?

colinsullivan · February 22, 2021, 2:28pm

Yay cool to hear!

That is a good q, right now voltage near 0 means 0% probability and so it will stop sending gates entirely.

That said, this isn’t explicit so it’s more likely to be around 1% and still pass some events through.

I could see it really “snapping” into 0% when the input is near 0. Or maybe something else would be interesting…