Stschoen has been as productive as ever, this time with an Audulus version of the full modular system version of the Rob Hordijk’s Rungler.
I dove into exploring it alongside some videos of Hordijk himself demonstrating the module, as well as a little detective work concerning details that have fascinated me for some time. In his masterclass on Waveshaping and Fluctuation, Hordijk covers the waveforms of the Rungler VCO A – explaining the algorithm behind creating it’s ‘sine’ – or rather ‘parabol’ – waveform. That waveform provides the basis for his fluctuation modulation, which I’d looked at a while ago, and following that start I made some small changes to STS’ Rungler which hopefully bring the fluctuation waveforms closer to Hordijk’s design. The soft sync effects described at around 8 minutes in the Mallorca Rungler video also seem to work.