Harmony Voice for iPhone: Voice to Choir
Voice transformation application have been available for iOS and Android for many years. You can do all kinds of neat things with your voice if you get your hands on the right applications. Harmony Voice happens to be a very interesting iPhone app that turns your voice into a choir. It is a pitch shifter and harmonizer that can add up to 4 voices to your work.
Harmony Voice is fairly simple to use: just bring your voice and use the piano keyboard to harmonize your voice. You can add up to 4 voice. Harmony Voice adds the appropriate chords as you play. You can mix your voice with harmonized parts, change the character of it, and play a background track from your library. The app does have audio effects to improve the quality of your work.
Harmony Voice can be controlled using a MIDI keyboard. Use the audio recorder to save your work and upload to SoundCloud. This is a universal application.