Ask your body

February 12, 2022 8:44 PM

Another AO jam - this time using a cellular algorithm to derive a melody and a few drum triggers that I mess with and layer under some drones.

Patch notes - Teletype sequencing a piano sample, Serge subtractive voice, bass drum and gated noise; some drum fills from Marbles > Plaits and a nice Strega bass drone.

posted by q*ben (6 comments total)

Whoa, what's the cellular algorithm you used here? It does seem really non-robotic.
posted by ignignokt at 7:43 AM on February 13


Just 1-D binary cellular automata that is built into Teletype’s CHAOS operator as an “extra” function. It’s actually not super useful as a lot of the rules devolve in non-melodic ways so i stuck with rule 30 and added a function that occasionally just skips around within that rule for some additional texture. The number that results with each step in the rule is used to pull a note from a table, and specific bits of the number are used to trigger the drum voices and provide accents and other triggers.
posted by q*ben at 11:15 AM on February 14


Very cool
posted by srednivashtar at 2:25 AM on February 16 [1 favorite]


I've had that 1-D binary cellular automata tab open for weeks and have finally just read it. It never occurred to me that you could do it in a line like that before. That's awesome. I should try something with that.
posted by ignignokt at 5:31 PM on February 20 [1 favorite]


I love this!
posted by wellifyouinsist at 2:30 PM on February 22


ignignokt, it’s actually taking a larger number (16 bit I think?) and stepping thru the rule that way. I can then grab pieces of the number (eg columns in the diagram) to trigger stuff or derive notes.
posted by q*ben at 6:10 PM on February 26


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