MICROPHONE

摘要

This microphone is provided with: a diaphragm; a frame, the inside of which is processed into a semispherical surface, a parabolic surface or a conical surface; an acoustic transducer which converts sound pressure to an electric signal; and a wire which transmits the electric signal from the acoustic transducer to outside. The sound pressure input surface of the acoustic transducer is arranged in the bottom surface portion of the semispherical surface, parabolic surface or conical surface inside of the frame, and there is a waterproofing mechanism for the diaphragm and the frame, and the frame and the wire, for preventing the ingress of water.