Surgery – Truss – Pad
Patent
1994-08-17
1997-07-08
Rimell, Sam
Surgery
Truss
Pad
128782, A61B 100
Patent
active
056450745
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. A virtual electroacoustic audiometer computes the electroacoustic parameters of a hearing aid based on the results of unaided audiometric evaluation.
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Shennib Adnan
Urso Richard
Decibel Instruments, Inc.
Glenn Michael A.
Rimell Sam
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