Voichap: A standalone real-time voice change application on iOS platform

High-quality voice mimicry is appealing to everyone. However, only few vocal geniuses are endowed with the talent for vivid mimicry. Professional mimics have to be trained and practice over many years for various vocal skills, such as vocal control, precision in pitch, sense of rhythm and personal style, etc. To help achieve our dream for fascinating voice mimicry, such as speaking in a celebrity's voice, we have developed a real-time voice conversion technology for the general users. You can specify any target (like your friend or a celebrity) for your voice conversion as long as the target's training utterances are available. To facilitate easy use, we have implemented it efficiently as a mobile application on the iOS platform, called Voichap, which can generate a desired natural target voice. Notably, the complete training and conversion process is performed locally in a reasonable time, with no need for on-line server service, to improve the user experience. Just three steps are enough to use this application: choose a target, record your voice and then have fun listening to your converted voice.