Just uploaded some macros for oversampling. They're IIR filters -elliptics implemented with allpasses. Rather light for very sharp responses. They came up some days ago in another thread and I liked them enough to immerse myself again in a little storm of number crunching (without having finished the previous one, of course) While testing this, I tried again, and remembered I had already tried, to make an ILO hyperbolic sat with a tri kernel -I remembered because it sort of failed again I have to raise the threshold considerably to avoid crackle, which raises a lot the noise floor, especially on high frequencies. It seems like it may be a general thing with ILO tri -so much differentiation making it very sensitive to error... It doesn't get better with 64-bit though, which is a little baffling. I also tried checking both differences instead of their product -it was worse. Has anyone been able to solve this, or had similar issues... or maybe knows I'm missing something?