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Primary Examiner: Claffy, Kathleen H.
Assistant Examiner: Kemeny, E. S.
Attorney: Beveridge, De Grandi, Kline & Lunsford

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Title: Electro-acoustic impedance bridges

Abstract: An electro-acoustic impedance bridge for measuring the acoustic impedance of the human ear over a predetermined frequency range compares the magnitude and phase of the variable-frequency sound driving both the human ear and the artificial ear (acoustic coupler).

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Inventors: Bennett, Michael John

Application Number: 707168
Filing Date: 1976-07-21
Publication_date: 1978-03-14
Assignee:
Primary Class(es): 600/559 73/585, 73/648
Other Classes:
US Patent Ref:

3294193	Dec, 1966	Zwislocki	179/1.
3295513	Jan, 1967	Dippolito	179/1.
3757769	Sep, 1973	Arguimbau et al.	179/1.
3949735	Apr, 1976	Klar	179/1.

Other Refs: Other References: Domnitz, H., "Headphone Monitor System for Binaural Experiments," J. Ac. Soc. of Am., Aug. 1975.