Biscuit’s fourth effect module, Step Filter, brings groovy rhythmic modulation of filter cutoff, resonance and even mode via a simple step sequencer interface. The cycling sequence can be 2, 3, 4, 6 or 8 steps long, and made to play Forwards, Backwards, Alternating between forwards and backwards, or jumping randomly between steps. You can sync it to the host DAW or set the speed with the Tap Tempo button or – annoyingly – the Time control in the Delay module. The Speed knob multiplies the set note value or tempo by up to x24, to a maximum of 1/96 or, er, 144,000bpm.
The cutoff Frequencies for all active steps are adjustable within the sequencer by dragging the tops of the vertical green bars up and down. Beyond that, though, with…