Jussi - Vocal Synthesizer is an innovative app that emulates male voice vowels in a distinct manner. With a range of powerful parameters, users can create a variety of vocal sounds, from gentle choir-like tones to intense shouting. Control formants by adjusting velocity, offering a playful experience when using a MIDI keyboard.

This app supports AUv3 and works seamlessly with compatible hosts like Garageband, Cubasis, and AUM. It features ADSR with "Turn-in" and "Turn-out" options, a Voice character XY pad for intensity and narrowness, Legato mode for smooth transitions between notes, and a Throat emulation XY pad for grain and tonality adjustments.