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Related Experiment Videos

The benefit method: fitting hearing aids in noise.

I Svard1, K E Spens, L Back

  • 1Department of Paediatrics, Queen Silvia Children's Hospital, Göteborg, Sweden.

Noise & Health
|May 5, 2007
PubMed
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The BeneFit Method (BFM) improves hearing aid effectiveness in noisy environments by simulating real-world listening conditions. This method significantly enhances speech recognition in noise (SRSN) compared to other fitting procedures.

Area of Science:

  • Audiology
  • Speech-Language Pathology
  • Hearing Aid Technology

Background:

  • Hearing impairment significantly impacts conversational ability in noisy environments.
  • Conventional pure-tone audiometry does not replicate real-world listening challenges.
  • Current hearing aid fitting methods may not optimize performance in complex auditory scenes.

Purpose of the Study:

  • To introduce the BeneFit Method (BFM) for hearing aid fitting under simulated competing speech conditions.
  • To compare the BFM with NAL-R and Logic fitting procedures through a clinical pilot study.
  • To evaluate the impact of different fitting strategies on speech recognition in noise (SRSN).

Main Methods:

  • 21 participants with hearing impairment were fitted with Danalogic 163D hearing aids.

Related Experiment Videos

  • Hearing aids were fitted using the BeneFit Method (BFM), Logic procedure, and NAL-R recommendations.
  • Speech recognition scores in noise (SRSN) were measured using monosyllabic words at various noise levels.

    • Main Results:

    • The BFM procedure significantly improved SRSN compared to unaided conditions (P<0.01) at a 75/65 dB signal/speech-noise level.
    • Participants demonstrated significantly higher SRSN with BFM fitting versus Logic or NAL-R fitting.
    • BFM utilizes individual, functional hearing thresholds in noise, simulating cocktail party conditions.

    Conclusions:

    • The BeneFit Method (BFM) offers a significant improvement in speech recognition in noise (SRSN).
    • Fitting hearing aids under conditions that mimic real-world noise exposure is crucial for audiological rehabilitation.
    • BFM provides a more effective approach to hearing aid fitting for challenging listening situations.