OttoPhormant is a dynamic wah effect that uses morphing formant filters to create expressive vocal-like sounds. It offers intuitive control through touch-triggered sweeps and envelope tracking, allowing for fluid modulation in real time. Additionally, the effect supports MIDI expression control, providing precise and hands-free manipulation during performance or production.

The core of OttoPhormant lies in its ability to morph between three selected vowel sounds—start, middle, and end—chosen from a palette of ten distinct formant types. This design enables smooth transitions between vocal timbres, making it ideal for adding organic movement and character to your audio. Each vowel position can be independently set, unlocking a wide range of expressive possibilities.

The effect's formants are shaped by three filters that can be configured as either bandpass or a combination of two bandpass and one lowpass filter. These filters draw inspiration from traditional wah pedals but incorporate multi-stage driven filtering technology for enhanced tonal control. Users can select from one to four filter stages, adjusting resonance and drive to tailor the sound precisely. OttoPhormant delivers deep customization to craft unique, talking effects that respond to your playing style.