Speech recognition and real-ear-measured amplification in hearing-aid users with various grades of hearing loss.

Objective: The relationship between aided speech recognition and hearing-aid (HA) amplification was investigated in a retrospective study. Design and study sample: Pure-tone thresholds, aided and unaided speech recognition and real-ear measurements of 635 ears in 374 HA users were reviewed. Ears wer...

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Published in:International Journal of Audiology Vol. 65; no. 7; pp. 834 - 846
Main Authors: Engler, Max, Digeser, Frank, Hoppe, Ulrich
Format: equations & formulas research tables/charts Journal Article
Published: Taylor & Francis Ltd Jul2026
Online Access:View this record in EBSCOhost
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        14992027
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      jtl: International Journal of Audiology
      issn: 14992027
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      dt: Jul2026
      vid: 65
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      pub: Taylor & Francis Ltd
      place: Philadelphia, Pennsylvania
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        10.1080/14992027.2024.2426009
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        atl: Speech recognition and real-ear-measured amplification in hearing-aid users with various grades of hearing loss.
      aug:
        au:
          Engler, Max
          Digeser, Frank
          Hoppe, Ulrich
        affil: Department of Audiology, ENT Clinic, University of Erlangen-Nürnberg, Erlangen, Germany
      sug:
        subj:
          Hearing Disorders
          Assistive Listening Systems
          Hearing Aids
          Acoustic Impedance Tests
          Auditory Threshold
          Speech Acoustics
          Human
          Female
          Male
          Retrospective Design
          Audiometry, Pure-Tone
          Audiometers
          Decision Making, Clinical
          Hearing Aid Fitting
          Speech Intelligibility
          Adult
          Middle Age
          Aged
          Aged, 80 and Over
          Kruskal-Wallis Test
          Post Hoc Analysis
          Spearman's Rank Correlation Coefficient
          Data Analysis Software
          Descriptive Statistics
          Funding Source
          Adult: 19-44 years
          Middle Aged: 45-64 years
          Aged: 65+ years
          Aged, 80 & over
          Female
          Male
      ab: Objective: The relationship between aided speech recognition and hearing-aid (HA) amplification was investigated in a retrospective study. Design and study sample: Pure-tone thresholds, aided and unaided speech recognition and real-ear measurements of 635 ears in 374 HA users were reviewed. Ears were classified according to pure-tone average (PTA) and real-ear aided response (REAR) in relation to the targets of NAL-NL2 and DSL v5.0. Results: For DSL v5.0, compared with NAL-NL2, higher amplification was calculated almost consistently for input levels of 65 and 80 dB SPL. Speech-recognition scores were best when the REAR reached ±5 dB or exceeded 5 dB the DSL v5.0 target and were lowest when the REAR fell more than 5 dB below the NAL-NL2 target. Conclusions: The greatest impact of the REAR on speech recognition was observed at hearing losses between 50 and 80 dB HL. It was found that to optimise speech recognition and audibility for patients in this range HA fittings should target DSL v5.0 prescription values. For hearing losses below 50 dB HL, both NAL-NL2 and DSL v5.0 may be considered for HA fitting. However, for hearing losses above 80 dB HL, aided speech recognition is insufficient in most cases.
      pubtype: Academic Journal
      doctype:
        equations & formulas
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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