Audio apparatus with circularly arranged microphones

摘要

An audio apparatus has a housing including a tub-shaped recessed part having an upper surface and a wall surface formed on the upper surface. Microphones are circularly arranged in the vicinity of the wall surface inside the recessed part. Each microphone face toward a center direction of the recessed part and the upper surface so that a sound pick-up directivity is toward the center of the housing. A back side, opposite to the direction having the directivity of each microphone is open acoustically and is directed toward a direction higher than the wall surface of the tub-shaped recessed part.

主权项

1. An audio apparatus comprising:
a housing including a tub-shaped recessed part defined by an upper surface and an annular wall formed on the upper surface; a plurality of directional microphones circularly arranged along the vicinity of the annular wall inside the recessed part, each of the microphones having a front side directed toward a center direction of the tub-shaped recessed part and downwardly toward the upper surface, wherein a back side of each of the plurality of directional microphones is acoustically open and is directed toward a direction higher than a height of the annular wall.