synthia is a small but powerful polyphonic synthesizer for the iPhone and iPod Touch.
A bank of cascaded-triple-oscillator frequency modulation (FM) synthesizers provides a broad palette of sounds from percussion to strings with over 170 million variations.
The keyboard can be scrolled across the full 88 keys of a piano from A0 to C8. You can even change the size of the keys to suit the size of your fingers. The keys are touch sensitive – the harder you tap a key the louder the sound.
There are 14 synthesizer controls:
Amplitude attack
Amplitude decay
Register (octave) shift
Portamento (for “sliding” from note to note)
Modulator 1 attack
Modulator 1 decay
Modulator 1 frequency ratio
Modulator 1 modulation index
Modulator 1 and dynamic modulation
Modulator 2 attack
Modulator 2 decay
Modulator 2 frequency ratio
Modulator 2 modulation index
Modulator 2 and dynamic modulation
The FM frequency ratio defines the harmonic frequencies, modulation index controls the number of harmonics, and dynamic modulation defines how the harmonics change in time.
For the latest on this app, head to the developer’s site - http://intelligentgadgets.us/synthia/synthia.html
Grab synthia now – 
