Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Testing of hearing aids
Patent
1988-05-10
1989-05-02
Isen, Forester W.
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Testing of hearing aids
73585, H04R 2900
Patent
active
048275255
ABSTRACT:
An attachment device for a probe microphone adapted to be utilized in conjunction with the external ear canal of a person having an ear lobe. A housing is adapted to contain the probe microphone and secures the housing in a fixed relationship with respect to the ear lobe of the person. A probe tube is coupled to the housing and is adapted to be coupled to the probe microphone and adapted to be inserted into the external ear canal of the person. A holding mechanism is coupled to the housing and receives the probe tube and slideably secures the probe tube in a repositionably fixed relationship to the housing. In this manner the housing may be secured and positioned with respect to the ear lobe and the probe tube may be slid through the holding mechanism and positioned reliably in the external ear canal. A marker may be attached to the probe tube to reliably mark a particular location along the probe tube for further reference by a user of the attachment device so that the user may mark a particular location along the probe tube with reference to an extrinsic landmark.
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Poul B. Madsen, "Insertion Gain Optimization", Hearing Instruments, vol. 37, No. 1, pp. 28-32 (1986).
David A. Preves and Roy F. Sullivan, "Sound Field Equalization For Real Ear Measurements With Probe Microphones", Hearing Instruments, vol. 38, No. 1, pp. 28-32 (1987).
Harvey Dillon and Narelle Murray, "Accuracy of Twelve Methods For Estimating the Real Ear Gain of Hearing Aids", Ear and Hearing, vol. 8, No. 1, Williams & Wilkins Co. (1987).
Hotvet David A.
Rising Rolf C.
Woodfill Ernest L.
Bauer William D.
Isen Forester W.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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