The MF-107 FreqBox(tm) is different from other effects the effected sound is not a processed version of your input signal, but the sound of the input signal modulating an internal oscillator. It contains a VCO with continuously variable waveshape, and the capacity to modulate that Oscillator in the following ways:
- the VCO can be hard synced by the input signal
- The VCO can be frequency modulated (FM) by the input signal
- The VCO frequency can be modulated by an envelope follower which tracks the dynamics of the input signal
- The Amplitude of the VCO also tracks the dynamics of the input signal
