環境音の音場操作を用いた方向情報提示：感覚刺激の低減による聴覚ディスプレイ

抄録

Recently, the various systems that present directional information are studied and put into practical use. Many of these systems are intended to add sensory stimulus to users to present the directional information. For example, these systems present directional information, such as map information, voice guidance and others. In general, such methods are useful to navigate the user to certain destinations. However, by using such explicit presentation method, users' behavior is restricted by the presented information or the system. For example, in case of that user pays attention to their surround environment or is lost in meditation, the explicit presentation is not required. On the other hand, we propose a novel method to present directional information by decreasing sensory stimulus. Our method uses only environmental sound to present directional information. With the proposed method, we implement a prototype system. The device decreases the sensory stimulus by controlling the sound field of environmental sound. The result of user experiments shows that the information presented by the system is recognized only when the user explores it consciously.