Unlike other talk-boxes, the Talker has no messy plastic tubes to deal with. Wild vintage knobs and real wood sides. Nobody makes 'em like Bob Moog. Control parameters are signal mix, cutoff frequency, resonance amount, and envelope amount. All of the Lowpass Filter's parameters can be controlled with expression pedals or external control voltages as well as by rotary panel controls.
Panel switches select filter mode and envelope follower response speed.
The moogerfooger Ring Modulator multiplies an audio input and a carrier oscillator to produce sum and difference frequencies. Panel switches select carrier oscillator range and LFO waveform.