Elliott Garage, developer of EGSY01, released Formante. This is the vocal (formant) filter engine found in EGSY01, now available as an AUv3 effect. Formante includes AUv3 automation and an envelope you can draw.
Formante iTunes Description:Formante is an AudioUnit AU3 compatible vocal filter plugin.
You can simulate the formants and the vowels of a human voice, creating rich and mellow sounds; it can be applied to synthesizes, drums, guitars or any sound you want.
Its parameters can be controlled by hosts or automated with the integrated drawable envelope (you can choose 16/32/64 steps resolution) and a BPM tempo control.
Its filter engine has been already acclaimed in the vocal section of EGSY01 analogue synth, and we decided to publish it as a standalone filter due to users request.
this is not a standalone app, but you need an AU3 compatible host like n-Track, AUM, Auria, Cubasis or Beatmaker3