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Related Experiment Videos

Estimating speech threshold from the PI-PB function

S Jerger, J Jerger

    Archives of Otolaryngology (Chicago, Ill. : 1960)
    |August 1, 1976
    PubMed
    Summary
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    This study determined speech thresholds using phonetically balanced (PB) words in over 2,000 patients. The PB word threshold (PBT) offers a reliable cross-check for pure-tone average (PTA) and aids in understanding audiometric contour.

    Area of Science:

    • Audiology
    • Speech-Language Pathology
    • Hearing Science

    Background:

    • Accurate hearing assessment is crucial for diagnosing and managing hearing loss.
    • Traditional audiological tests include pure-tone audiometry and speech audiometry.
    • The performance intensity function for phonetically balanced (PB) words provides insights into speech recognition abilities.

    Purpose of the Study:

    • To determine speech thresholds from the performance intensity function for PB words.
    • To compare the PB word threshold (PBT) with pure-tone average (PTA) and spondee word threshold (ST).
    • To evaluate the utility of PBT in cross-checking pure-tone sensitivity and assessing audiometric contour.

    Main Methods:

    • Speech thresholds were derived from the performance intensity function for PB words.

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  • Data were collected from a large cohort of 2,117 patients with diverse hearing loss profiles.
  • Statistical comparisons were made between PBT, PTA, and ST.

    • Main Results:

    • The PBT was successfully determined across various hearing loss types and degrees.
    • PBT demonstrated a strong correlation with PTA, serving as a valid cross-check.
    • PBT provided additional valuable information regarding the shape of the audiometric contour.

    Conclusions:

    • The threshold for PB words is a valuable audiological measure.
    • PBT serves as an effective cross-check for pure-tone sensitivity.
    • PBT offers supplementary insights into audiometric characteristics beyond PTA and ST.