Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Testing of hearing aids
Patent
1995-12-20
1998-10-20
Isen, Forester W.
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Testing of hearing aids
381 17, 600559, H04S 500, H04R 2900
Patent
active
058258949
ABSTRACT:
A hearing evaluation and hearing aid fitting system provides a fully immersive three-dimensional acoustic environment to evaluate unaided, simulated aided, and aided hearing function of an individual. Digital filtering of one or more signal sources representing speech and other audiologically significant stimuli according to selected models and digitally controlled signal processing parameters, including audio sources, spatializing coordinates, acoustic boundaries, signals representing one or more simulated hearing aids, and individualized body/external ear transfer functions synthesizes a simulated acoustic condition for presentation to a hearing-impaired person for objective and subjective hearing evaluation via an intra-canal prosthesis that is positioned in the ear canal, and that incorporates a microphone probe to measure in-the-ear-canal responses at a common reference point near the tympanic membrane during unaided, simulated aided, and aided hearing evaluation, thus providing measurements that are directly correlated across all phases of hearing assessment during the fitting process of a hearing aid.
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Decibel Instruments, Inc.
Glenn Michael A.
Isen Forester W.
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