超音波骨伝導による音像定位に関する研究

抄録

Ultrasonic bone conduction (UBC) can be perceived by a normal hearing subjects and a profoundly deaf person. The purpose of this research is to design the UBC speaker which is able to control the sound image localization in auditory sensation. The UBC speaker is constituted by the multilayer type piezoelectric actuator and the mounting device, which is produced experimentally. In the experiment, it is mounted on the mastoid or the front-back of head, and the distribution and angle of sound image localization were evaluated sensuality. The experimental results showed that the crosswise localization of UBC was more clear than the one's of air conducted sound. However, it is clear that the anteroposterior localization could not be control by the present investigation.