The EVOC 20 PolySynth interface is divided into six main parameter sections.

Sidechain Analysis parameters: Determine how the input signal is analyzed and used by the EVOC 20 PolySynth. See EVOC 20 PolySynth analysis parameters.
U/V Detection parameters: Detect the unvoiced portions of the sound in the analysis signal, improving speech intelligibility. See EVOC 20 PolySynth (U/V) detection parameters.
Synthesis parameters: Control the polyphonic synthesizer of the EVOC 20 PolySynth. See EVOC 20 PolySynth synthesis parameters overview.
Formant Filter parameters: Configure the analysis and synthesis filter banks. See EVOC 20 PolySynth formant filter.
Modulation parameters: Modulate the synthesizer and filter banks—through two LFOs. See EVOC 20 PolySynth modulation parameters.
Output parameters: Configure the output signal of the EVOC 20 PolySynth. See EVOC 20 PolySynth output parameters.