Moogerfooger

Moogerfooger is the trademark for a series of analog effects pedals manufactured by Moog Music. There are currently eight different pedals produced, however one of these models is designed for processing control voltages rather than audio signal. A sixth model, the Analog Delay, was released in a limited edition of 1000 units and has become a collector's item.

Audio moogerfoogers consist of a black wedge-shaped box, approximately 5 by 9 inches (13 by 23 cm), with walnut edges. The face contains an array of knobs, switches and LEDs. All moogerfoogers have a knob that allows the user to fade the effect from a completely dry (100% original input) to a completely wet (100% processed) signal. There is also a stomp switch that allows the user to toggle the effect on and off and a knob that controls the gain. True to the nature of modular synthesizers, all parameters on the pedals are variable using control voltages which may be plugged into the rear of the pedal using 1/4" jacks.

The MF-101 is an independent analog low-pass filter. Based on the amplitude of the dry audio signal, an envelope is generated. This envelope alters the filter's cutoff frequency and its amount is variable. Knobs also allow controlling of the filter's frequency (from 20 Hz to 12 kHz) and resonance. The resonance can be increased to the point of self-feedback producing a pitch that follows the filter cutoff frequency. The MF-101 was released by Big Briar (now Moog Music) in 1998.

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