Hearing Aid Evaluation: Limitations of Present Procedures and Future Requirements L'evaluation prothetique: limites des procedures actuel/es et besoins futurs
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چکیده
This paper discusses the underlying conceptual problems of techniques employed in hearing aid selection and evaluation processes in four classes: target gain formulae, consumers' jUdgement, speech intelligibility, and self-report. Although technology for delivering and assessing acoustic properties is now largely in place, all the prescriptive formulae suffer from the absence of systematic large scale external validation studies to determine their overall success, their relative effectiveness, and the effect of deviations from the standard. As the complexity of hearing aids increases in the future, the demands on the tools and procedures used for selection and evaluation will increase. At present all the procedures have received insufficient systematic investigation on large enough representative populations for standardized instruments to emerge. Despite the legion of conceptual and practical problems in developing and validating such instruments, they remain a priority for both research and clinical applications if future technology is to be applied to the maximum benefit of the hearing impaired.
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تاریخ انتشار 2006