Ear model, artificial head, and measurement system and measurement method using the ear model and artificial head

A measurement system for evaluating an acoustic apparatus, the acoustic apparatus causing a user to hear sound by vibration of a vibrating element, the measurement system comprising:

• an ear model including an artificial ear modeled after a human ear and an artificial external ear canal continuous with the artificial ear;
• and
• a microphone configured to measure an air-conducted component inside the artificial external ear canal, wherein
• with the acoustic apparatus in a state of contact with the artificial ear, vibration is transmitted from the artificial ear to the artificial external ear canal.

A method for measuring an acoustic apparatus, the acoustic apparatus including a vibrating element and allowing sound to be heard via vibration transmission, the method including steps of:

• holding the acoustic apparatus in contact with an ear model that includes an artificial ear modeled after a human ear and an artificial external ear canal in contact with the artificial ear;
• causing the acoustic apparatus to generate a test sound;
• and
• measuring, with a microphone disposed in the external ear canal of the ear model, an air-conducted component inside the artificial external ear canal including a newly generated emission component, the emission component being a new air-conducted component generated by the artificial ear and an inner wall of the artificial external ear canal vibrating due to vibration transmitted from the artificial ear to the artificial external ear canal with the acoustic apparatus in a state of contact with the artificial ear.