Bone Conduction Auditory Navigation Device for Blind People

A navigation system using a binaural bone-conducted sound is proposed. This has three features to accurately navigate the user destination point. First, selection of bone-conduction device and optimal contact conditions between human head are discussed. Second, basic performance localization reproduced by selected with sounds confirmed considering head-related transfer functions (HRTFs) obtained in air-borne field. Here, panned technique that may emphasize also validated. Third, ensure safety navigating person, which most important factor visually impaired person voice guidance, an appropriate warning investigated. Finally, based on abovementioned conditions, we conduct auditory experiment guide announcement. The time required reach route shorter case information including reproduction, as compared only information. Therefore, be effective.