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Differences in performance between Oticon MultiFocus Compact and ReSound BT2-E hearing aids

M Valente1, C A Sammeth, L G Potts

  • 1Department of Otolaryngology, Washington University School of Medicine, St. Louis, Missouri 63110, USA. Valente_M@A1.kids.wustl.edu

Journal of the American Academy of Audiology
|August 1, 1997
PubMed
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This study compared Oticon MultiFocus (MF) and ReSound BT2-E hearing aids. While MF excelled in some speech tests, BT2-E performed better in noisy environments, with mixed user preferences.

Area of Science:

  • Audiology and Hearing Aid Technology
  • Speech Perception and Signal Processing

Background:

  • Binaural hearing aid fittings are crucial for audiological rehabilitation.
  • Comparing performance across different hearing aid manufacturers is essential for informed clinical decisions.
  • Understanding user preference and objective measures provides a comprehensive evaluation.

Purpose of the Study:

  • To evaluate and compare the performance of Oticon MultiFocus (MF) and ReSound BT2-E hearing aids in binaural fittings.
  • To assess speech perception in noise, hearing aid benefit, loudness perception, and user preference between the two devices.

Main Methods:

  • A comparative study involving 25 hearing-impaired subjects across two clinical sites.
  • Utilized Speech Perception in Noise (SPIN) tests, Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire, and loudness judgments.

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  • Included a 4- to 6-week trial period with manufacturer-specific fitting algorithms and subject-driven adjustments.

    • Main Results:

    • Oticon MultiFocus (MF) showed significantly better Speech Perception in Noise (SPIN) scores at 50 and 65 dB SPL.
    • ReSound BT2-E demonstrated significantly better SPIN scores at 80 dB SPL.
    • No significant difference in APHAB benefit scores, but both aids outperformed subjects' previous devices; MF had slightly higher loudness judgments.

    Conclusions:

    • Both Oticon MultiFocus and ReSound BT2-E offer significant benefits over previous hearing aids.
    • Performance differences, particularly in speech perception at varying noise levels, exist between the MF and BT2-E.
    • User preference was divided, suggesting that audiogram characteristics and signal processing strategies influence device selection.