Developer Koka Nikoladze has released Vox Wooah – a free vocal processing app for iPhone that uses CSound for voice-tailored pitch-shifting.

Features:

• The software gives you the possibility to adapt it to your own voice, adjust the analysis parameters like FFT size, window size and type, overlap.
• You can choose to preserve formants.
• You can change the pitch shifted interval in flight.
• Support for alternate tunings
• The mix of the transposed voice can be controlled with the internal gyroscope.

Note: A headset microphone and an iPhone input – output splitter are recommended for performance use of this app.