Patreon Exclusive - Elastika by Sapphire

As a new Patreon and a long time fan of your videos, this was the first video I watched the moment I joined... it has blown my mind. I've always found Sapphire modules so fun to explore with, and this video has certainly shown me quite a lot about this very versatile and fun module! Thanks!! I am incredibly looking forward to all the content on here!

Hola Omri, como tú has dicho, este módulo es una mina de oro para crear efectos de sonido. En la última sección, todo se puso muy creepy y me hizo pensar en un juegazo llamado Silent Hill. Por suerte, vi este video antes de medianoche.

In order to be able to use elastica really intuitively, it is so helpful to study the manual with the explanation of the physics. Very cool module. Thanks to the developer Don Cross. Thank you Omri for introducing the module. Found the Manual in https://github.com/cosinekitty/sapphire/blob/main/Elastika.md

very nice

Thank you, Omri, for taking the time to explore and demonstrate my new module. I was so happy to see this video come out this morning! It was really fun to see what you came up with. To better understand the TILT controls, here is how they work. As you point out, Elastika's inputs are exciters. Just like the grooves in a vinyl record make a phonograph needle move back and forth, the stereo input voltages make a pair of simulated point masses (balls) in Elastika's physical model move back and forth. The input TILT control adjusts the direction of the angle in 3D space that the input balls move. Think of striking a gong with a hammer, but with different angles of incoming impact. The output TILT adjusts what angle in space we are "listening" to on the output. This is a little more difficult to visualize, but the idea is that I have to turn the 3D position vector of each output ball into a 1D voltage somehow. For anyone familiar with vector math, I am taking the dot product of the position vector with an adjustable direction vector to obtain a scalar voltage. The tonality changes with both input and output tilt angles, because the 3D simulation has different resonant modes in different directions. About adding CV for the input and output level, my original thought was that this can be done using a pair of VCAs on the input and a pair of VCAs on the output, one for each channel in both cases. Or you could use pairs of ADSRs. Or other things. I didn't want to get too carried away with the number of controls, nor too opinionated about the choices, especially in cases where an external module could do just as good a job. If anyone has more questions, feel free to ask. I'm also starting to brainstorm ideas for my next VCV Rack module.