Abstract
Recently, interactions with a virtual object on a head mounted display (HMD) are focused with developments of HMDs. Our previous study aimed at natural interaction with virtual objects and developed an AR system that realizes grasping a virtual object with his/her bare hands. However, it was not easy for a user to perceive a feeling of grasping a virtual object with his/her bare hands. In this study, we try to improve the perception by adding auditory cues when a user grasps a virtual object of various shapes, with his/her bare hands.