Acoustic impedance in the human ear canal.
For 13 normal-hearing test persons, the acoustic impedance about 6 mm inside the ear canal entrance has been measured in the frequency range 90-20,000 Hz by using standing wave measuring tubes connected to the ear canal via small ear adaptor tubes. The results show good reproducibility but large individual differences.
Kringlebotn
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Division of Physics, Norwegian Institute of Technology, University of Trondheim.
D000158:Acoustic Impedance Tests; D000161:Acoustic Stimulation; D001307:Auditory Perception; D004431:Ear, External / Q000502:physiology*; D006309:Hearing / Q000502:physiology*; D006801:Humans