The Byte is an 8-bit digital synthesizer that detects the sound of the bass and generates it’s own sound on response to it. The detector is monophonic (it only handles one note at a time). It has two independent oscillators with several waveforms, one running at the original frequency, and another one octave lower (suboscillator), which can be used together or separate.
The generated sound goes then thru a low-pass filter, whose frequency can be modulated by an envelope that responds to the note’s attack. At the end of the chain, there is a sample rate limiter that provides for interesting aliasing (phantom frequencies) effects.