A gestural interface in a computer-based conducting system.

摘要

Over the past few years, a number of computer-based conducting systems have been designed and implemented. However, only a few of than have been developed to help a user learn and practice musical conducting gestures. Few systems provide both visual representation for a conducting gesture and aural feedback. This thesis is intended to address research related to this area. It focuses on a gestural interface designed and developed for a computer-based conducting system.;This gestural interface utilizes an infrared technique to track the motions of the right arm and an acceleration sensor for the gestures of the left arm. The infrared sensor enables the system to be used in a natural environment and has little influence on the conducting. The gesture recognition is based on the inherent characteristics of conducting gestures including positions and amplitudes. It is an accurate and relatively simple process. The conducting is interpreted using a few visual items that show a conducting gesture very clearly and straightforwardly reveal its quality. In addition, this gestural interface supports both tempo following and dynamics following and provides straightforward visual representations for them. The aural representation included in the interface is to inform users of the occurrence of beats or errors.