Ear model unit, artificial head, and measurement device and method using said ear model unit and artificial head

摘要

A measurement device and measurement method for evaluating an acoustic device that allows a sound to be transmitted via vibration transmission by being held by a human ear includes an ear model unit having an ear model modeled after a human ear and an artificial external ear canal unit continuous with the ear model. The ear model unit is formed from rubber, a same material as an auricle model conforming to IEC 60318-7 or IEC 60268-7, or a material having a Shore hardness of from 30 to 60. The ear model is provided with an auricle or a hole which holds the acoustic device. A microphone is configured to measure an air-conducted component generated within an artificial ear canal of the artificial ear canal unit by vibration transmitted to the ear model unit from the acoustic device held by the auricle or the hole.