Sound Scope Phone: Focusing Parts by Natural Movement

This paper describes Sound Scope Phone, an application that enables you to emphasize the part you want to listen to in a song consisting of multiple parts by head direction or hand gestures. The previously proposed interface required special headphones equipped with a digital compass and distance sensor to detect the direction of the head and distance between the head and a hand, respectively. Sound Scope Phone integrates face tracking information on the basis of images from the front camera of a commercially available smartphone with information from the built-in acceleration/gyro sensor to detect the head direction. The built application is published on the Apple App store under the name SoundScopePhone.