el.mm1p([props], g, x)

A first-order, "virtual analog" zero-delay multi-mode filter as defined in Vadim Zavalishin's "The Art of VA Filter Design."

The filter can be set into lowpass, highpass, or allpass mode via the mode prop, and expects two children: the first specifying the cutoff frequency in the analog domain and the second the input signal to be filtered.

You may often pair this node with el.prewarp to transform a digital domain cutoff frequency to analog.

Example:

let out = el.mm1p(el.prewarp(800), el.in({channel: 0}));

Props