Jussi – Vocal Synthesizer from Klevgränd has arrived


As you probably already know, I do like apps that are a little further off the beaten track than most, and this really fits the bill for me. Jussi is pretty unusual. In fact, I’d say I’m not sure I’ve seen anything quite like it before.

When I first launched Jussi I have to say that it was a surprise. Not quite what I’d expected at all. For the most part vocal synths often sound a little too robotic for my liking. Not that I don’t like robots or robot sounds of course. But it was a real surprise, a very different and very unique sound.

I’ve really enjoyed using Jussi so far, although I’m not sure quite where I’ll use this in my own music. Having said that, I might just have to make something special with it.

For now, take a look at the app’s description:

This synthesizer emulates male voice vowels in a unique way. Thanks to a set of powerful parameters you can make Jussi sing anything from soft and airy choir-like vowels to hard and angry shouting.
Formants are controlled by playing with different velocity, which makes it fun and easy to play using a MIDI keyboard.


  • AUv3, works with AUv3 compatible hosts like Garageband, Cubasis, AUM etc
  • ADSR with ”Turn-in” and ”Turn-out” option (Turn-in and Turn-out affects the pitch and maps it to attack and release)
  • Voice character XY pad (Intensity and Narrowness)
  • Legato mode (glides between notes and velocity levels)
  • Legato Hold mode (polyphonic legato when using a sustain controller, consult the documentation for more info)
  • Throat emulation XY pad (Grain and Tonality)
  • Built-in reverb

Note: Jussi in stand-alone mode does not support IAA, Audiobus or MIDI. You can play it using the keys at the bottom, but that’s it. We recommend using Jussi with AUv3 compatible hosts.

  • iPhone 6 or later is recommended.
  • iPad 4 or later is recommended.

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