Subdecay Noise Box
The Noise Box is an envelope following harmonic frequency generator. (Confused yet???) Frequencies generated are harmonically related to the input, and controlled by the Frequency knob, the Sense knob, and the Chaos knob.
So what do all those knobs do?
The Frequency knob sets the resting point of the frequency generator.
The Sense knob controls how much the input signal will affect the the range of the frequency generator.
The Chaos knob controls the attack. Once turned half way up the Chaos knob loses its ability to track correctly, and the tones created by the frequency generator become more and more random.
The Voice control alternates between two different voicings of the frequency generator, with varied levels of high frequency roll off.
Level controls overall volume of the effect.
What about extra noise?
The Noise Box also has an internal noise gate built in that turns the frequency generator off when you are not playing.