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Related Experiment Videos

Pairwise listener preferences in hearing aid evaluation

J L Punch, C A Parker

    Journal of Speech and Hearing Research
    |September 1, 1981
    PubMed
    Summary
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    This study found that listener judgments of aided speech intelligibility correlate with objective measures, but quality judgments do not. Further research is needed to validate pairwise comparison for hearing aid evaluations.

    Area of Science:

    • Audiology
    • Speech Science
    • Hearing Aid Technology

    Background:

    • Assessing hearing aid performance is crucial for individuals with sensorineural hearing loss.
    • Traditional hearing aid evaluations may not fully capture real-world listening experiences.
    • Pairwise comparison is a potential method for evaluating aided speech intelligibility and quality.

    Purpose of the Study:

    • To evaluate the relationships between subjective judgments of speech quality, relative intelligibility, and objective intelligibility measures.
    • To assess the reliability of these judgments under controlled listening conditions.
    • To determine the viability of pairwise comparison as an alternative to traditional hearing aid evaluation.

    Main Methods:

    • 12 listeners with sensorineural hearing loss participated in a repeated-measures design.

    Related Experiment Videos

  • Stimuli processed by eight hearing aids were presented under conditions of primary talker and competitive babble.
  • Three types of judgments were collected: quality, relative intelligibility, and measured intelligibility (nonsense-syllable test).

    • Main Results:

    • High test-retest reliability was observed for all three judgment types.
    • A moderate positive relationship existed between relative intelligibility judgments and measured phonemic identification, varying by listener.
    • The relationship between quality judgments and relative intelligibility, and between quality judgments and phonemic identification, was low to negligible.

    Conclusions:

    • Subjective intelligibility judgments show promise but require listener-specific optimization for reliable hearing aid evaluation.
    • Instructional set significantly impacts the validity of relative intelligibility judgments.
    • Pairwise comparison needs further refinement to be a viable alternative to traditional hearing aid evaluation methods.