MICROPHONE UNIT AND AUDIO INPUT DEVICE PROVIDED THEREWITH

摘要

A microphone unit (1) is provided with a first vibration unit (14); a second vibration unit (15); and a housing (20) that has the first vibration unit (14) and the second vibration unit (15) housed therein, and has a first sound hole (132), a second sound hole (101), and a third sound hole (133) formed thereon. The housing (20) has formed thereon: a first sound path (41) that transmits sound pressure inputted from the first sound hole (132) to a first face (142a) of a first vibration plate (142), and to a first face (152a) of a second vibration plate (152); a second sound path (42) that transmits sound pressure inputted from the second sound hole (101) to a second face (142b) of the first vibration plate (142); and a third sound path (43) that transmits sound pressure inputted from the third sound hole (133) to a second face (152b) of the second vibration plate (152).