An alternate method for determining functional gain of hearing aids

D. Rines, P. G. Stelmachowicz, Michael P Gorga

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The functional gain of a hearing aid typically is determined by comparing aided and unaided behavioral thresholds. With this method, however, true gain may be underestimated in frequency regions of normal or near-normal hearing sensitivity (i.e., in cases of sloping, rising, or trough-shaped audiograms). Internal hearing-aid noise and/or amplified room noise imposes a lower limit on obtainable aided thresholds. In these cases, comparing aided and unaided acoustic-reflex thresholds may be a valuable clinical alternative to traditional means of determining real-ear gain. This study compared sound-field behavioral threshold and acoustic-reflex threshold estimates of functional gain for individuals with a variety of audiometer configurations. The sound-field behavioral threshold measurements were found to underestimate functional gain if unaided thresholds approached the normal hearing range. In regions of greater hearing loss, behavioral and acoustic-reflex estimates of functional gain were in good agreement.

Original languageEnglish (US)
Pages (from-to)627-633
Number of pages7
JournalJournal of Speech and Hearing Research
Volume27
Issue number4
StatePublished - Dec 1 1984

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Acoustic Reflex
Hearing Aids
acoustics
Hearing
Noise
Hearing Loss
Ear
Reference Values

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

An alternate method for determining functional gain of hearing aids. / Rines, D.; Stelmachowicz, P. G.; Gorga, Michael P.

In: Journal of Speech and Hearing Research, Vol. 27, No. 4, 01.12.1984, p. 627-633.

Research output: Contribution to journalArticle

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