UmanoidVoice app for iPhone and iPad

This appli simulates a human voice singing vowels.
Its a simple simulation so you might hear like another creature imitating human being. With such a feeling, I named it "Umanoid" not "Humanoid".

It has only one view. So you can understand easily how to use.
There are three type of controllers, Just Demonstration switch, playing controllers, and vibrato controllers.

---Demonstration Switch---
The switch located the bottom of view is to start/stop Demonstration Song.

---Sound Switch---
Sound turns On/Off.

---Playing Controllers---
They are three red circles and this applis main feature.
1.Pitch Controller
It moves verticality. It can control pitch from C3 to C5.
2.Amplitude Controller
It moves horizontality. It can control amplitude by 20dB.
3.Formant Controller
It has a square region and its a two-dimensional controller. The horizontal axis means the first formant. The vertical axis means the second formant. By operating this controller, you can get a various vowels in real-time.

---Vibrato Controllers---
1.Speed
It controls a vibrato speed.
2.Depth
It controls a vibrato depth.