We have been developing a sound field effector by using a loudspeaker array. In order to design a practical system, psychoacoustic experiments for recognition of sound fields are required. In this study, perception of a sound focus is investigated using 16 channel loudspeaker array. Listening experiments were conducted in an anechoic room and a listening room. The movement of 25cm in horizontal direction and the movement of 100cm in the direction from the speaker array towards the subject could be recognized in the both rooms, but that in the vertical could not be perceived in the both rooms.
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