Patent ID: 8150077
Filing Date: 2012-04-03
Classification: H04R

Abstract:
1. A composite type microphone that incorporates microphone units of different electroacoustic conversion methods into a common microphone body, wherein in a front acoustic terminal portion of a first microphone unit based on one electroacoustic conversion method, a second microphone unit based on another electroacoustic conversion method is disposed; in the front acoustic terminal portion of the first microphone unit, an air that vibrates in the same phase with that of a vibrating plate of the first microphone unit exists; within the air that vibrates in the same phase with that of the vibrating plate of the first microphone unit, the second microphone unit is disposed; the second microphone unit is disposed such that the center thereof is aligned with an acoustic center of a front acoustic terminal of the first microphone unit; and the first and second microphone units output signals of a same phase.