MICROPHONE UNIT AND VOICE INPUT DEVICE PROVIDED THEREWITH

摘要

Disclosed is a microphone unit (1) provided with a first vibration unit (14), a second vibration unit (15), and a case (10). The first vibration unit (14) and the second vibration unit (15) are contained within the case, and the case (10) is provided with: a first sound hole (132); a second sound hole (133); a first sound channel (41) that transmits acoustic pressure inputted via the first sound hole (132) to one surface (142a) of a first diaphragm (142) and one surface (152a) of a second diaphragm (152); a second sound channel (42) that transmits acoustic pressure inputted via the second sound hole (133) to the other surface (152b) of the second diaphragm (152); and a sealed space (S), which the other surface (142b) of the first diaphragm (142) faces.