| 摘要 |
PROBLEM TO BE SOLVED: To prevent vibration noise from being generated in a composite microphone including first and second unidirectional microphone units of which the electroacoustic conversion systems are different.SOLUTION: The composite microphone is configured by including a unidirectional dynamic microphone unit 10 and a unidirectional capacitor microphone unit 30 and coaxially arranging diaphragms 16 and 32 of the two microphone units. A sonic wave introduction port 18a of a front acoustic terminal in the dynamic microphone unit 10 is provided toward a front side in an axial direction. A sonic wave introduction port 18c of a rear acoustic terminal in the capacitor microphone unit 30 is provided toward an outer peripheral direction of the capacitor microphone unit 30 being orthogonal to the axial direction outside of the front acoustic terminal of the dynamic microphone unit 10. |
