Sound reproduction device

摘要

A sound reproduction device includes a superdirective speaker having a first surface, and an attachment part having a second surface opposed to the first surface. The first surface has a convex face, and the second surface has a concave face which can come into contact with the convex face. A curvature of the convex face is set larger than that of the concave face. A direction of emitting a sound wave of the superdirective speaker can be adjusted by making the convex face move along the concave face.

主权项

1. A sound reproduction device comprising:
a superdirective speaker having a sound wave emitting face for emitting an ultrasonic wave and a first surface; and an attachment part having a second surface opposed to the first surface, wherein: at least a part of the sound wave emitting face of the superdirective speaker is a mirror face, the first surface has a convex face, the second surface has a concave face which can come into contact with the convex face, a curvature of the convex face is set larger than that of the concave face, and a direction of emitting a sound wave of the superdirective speaker is adjusted by changing tilt of the sound wave emitting face by moving the convex face along the concave face.