I’ve been meaning to try out some digital Moog filter code. A digital Moog filter is simply a filter that attempts to model the analog filters found on Moog synthesizers. It’s got two knobs: frequency and resonance. I yanked some code from musicdsp.org, a wonderful resource, and wrote a really simple UGen with it. I meant to write more of a song, but there’s never enough time for that in these evening coding forays. So instead, you get this kind of avant-garde slow tuning thing using amplitude modulation and tweaking of the filter values. Have a listen!