LouisI was just thinking about this shadertoy recreation of an acid house groove. If I’m remembering this one right: Since shaders cannot do recursion, the resonance is generated additively. The entire filter is additive actually. Then it’s thrown through distortion anyway, so the lack of realistic filter saturation isn’t a big deal. Don’t ask me about the graphics. That’s magic to me. https://www.shadertoy.com/view/ldfSW2 #musicDSP
I really like the Moog ladder filter design in software because it is DIY-friendly:
- It’s relatively easy to understand how the phase shifts add up to 180 degrees at cutoff for resonance
- It’s easy to tweak the individual stages and add distortion between them
- It can be made out of very simple DSP blocks
- You can get a handful of different slopes easily by tapping out of different points
- There’s nothing you can’t fix with oversampling 😈
Groumpf (aka MaxMars)
Fatih Aygün