Graduation Year

2004

Document Type

Dissertation

Degree

Au.D.

Degree Granting Department

Audiology

Major Professor

Abrams, Harvey

Co-Major Professor

Lister, Jennifer

Keywords

telephone communication, hearing aids, fitting protocol

Abstract

The TEL-PHONE Telecoil Simulator Program was invented as a solution to the problem of customizing programmable telecoils (T-coils) in a standardized and convenient manner. The objective of this project was to evaluate the suitability of the device for clinical use. A preliminary review of the TEL-PHONE protocol revealed that the protocol was in need of refinement. Following a preliminary examination of the TEL-PHONE device, a detailed evaluation of acoustic and electromagnetic output was conducted. The output was analyzed using information gleaned from Electronic Industries Association Recommended Standard RS-504 (EIA RS-504) Magnetic Field Intensity Criteria for Telephone Compatibility with Hearing Aids and American National Standards Institute (ANSI) S3.22-1996 Specification of Hearing Aid Characteristics. This analysis indicated that the controls on the device were not reliable and the output did not approximate that of a standard telephone.

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