Two vocal harmony examples were shown in the demo video footage: Voicelive Touch 2; Microphone input to a Voicelive Touch 2 unit (TC Helicon) with note, volume, and oscillator effects controlled by the AUUG motion synth (via iRig MIDI cable) – 1.32 to 1.45 mins in demo video. (2) Harmony Voice app; Via an iRig Pre, a microphone was plugged into an iphone 5 (within the AUUG grip) with the microphone input fed into the Audiobus app – 1.01 to 1.15 mins in demo video. The Audiobus app was used to host Harmony Voice and Garageband. The Harmony Voice app received MIDI note commands from the AUUG app, and the Garageband app received volume level commands from the AUUG app.
If you want to perform harmony control live we strongly recommend you use products like the Voicelive Touch with the AUUG motion synth providing MIDI control. iOS harmony apps will improve if there is demand for them, but at present they need more development before they can match the results produce by hardware like the Voicelive Touch 2, especially when it comes to controlling audio feedback.
How were the real time vocal delay and reverb effects produced in your demo video? Via an iRig Pre, a microphone was plugged into an iphone 5 (within the AUUG grip) with the microphone input was fed into the Magellan Jnr app (1.16 to 1.31 mins in demo video) running delay and audio effects. The Magellan Jnr received control signals from the AUUG app including delay interval (screen buttons), feedback level (rotation angle around forearm), delay mix (yaw), and reverb level (vertical orientation).