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[Stereophonic apparatus: our hearing aid test].

S Burdo, G Bassi

    Acta Oto-Rhino-Laryngologica Belgica
    |January 1, 1979
    PubMed
    Summary

    Binaural amplification offers significant speech identification benefits for hearing aid users, especially those with greater hearing loss. While gain is slightly lower than monoaural, speech clarity improves remarkably.

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    Area of Science:

    • Audiology
    • Hearing Science
    • Speech-Language Pathology

    Context:

    • Sensorineural bilateral hearing loss affects individuals across a wide age range (10-84 years).
    • Hearing aid users often experience challenges with loudness perception and speech identification.
    • Evaluating amplification benefits requires standardized testing methods.

    Purpose:

    • To assess the advantages of binaural amplification versus monoaural amplification.
    • To quantify improvements in loudness perception and speech identification.
    • To validate a simple and cost-effective testing methodology.

    Summary:

    • A study involving 50 hearing aid users with sensorineural bilateral hearing loss (40-80 dB) compared binaural and monoaural amplification.
    • Binaural amplification resulted in a 5 dB lower gain compared to monoaural amplification.
    • Speech identification scores significantly improved with binaural amplification, with benefits increasing proportionally to hearing loss severity.

    Impact:

    • Binaural amplification provides a notable advantage in speech understanding for individuals with hearing loss.
    • The Jerger's test (1976) proved effective for evaluating speech identification improvements.
    • This research supports the use of simple, affordable instruments for audiological assessments.

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