Patent ID: 9036856
Filing Date: 2015-05-19
Classification: H04R,H04S

Abstract:
1. A sound reproduction device comprising: a first loudspeaker having directionality utilizing a parametric effect; a second loudspeaker having directionality broader than that of the first loudspeaker; an orientation adjustment unit configured to change an orientation of the first loudspeaker; an information obtaining device configured to obtain positional information of a listener; and a drive controller electrically connected to the first loudspeaker, the second loudspeaker, the orientation adjustment unit, and the information obtaining device, and configured to control the orientation of the first loudspeaker based on the positional information of the listener, wherein: the drive controller controls the orientation adjustment unit so that if a distance between the first loudspeaker and the listener is determined to be shorter than a distance between the first loudspeaker and a position of a peak of a sound pressure of audible sound in a state in which the first loudspeaker faces the listener, the orientation adjustment unit changes the orientation of the first loudspeaker in such a manner that the first loudspeaker changes from a state in which audible sound from the first loudspeaker directly reaches the listener to a state in which the audible sound from the first loudspeaker reaches the listener via a reflection surface.