Consonant recognition in quiet and in noise with aging among normal hearing listeners

作者: Stanley A. Gelfand , Neil Piper , Shlomo Silman

DOI: 10.1121/1.394323

关键词: Age factorConsonantAudiologyAgeingAcousticsNoiseCorrelationQUIETPsychologyActive listeningPhonetics

摘要: Consonant recognition in quiet and noise was investigated as a function of age for essentially normal hearing listeners 21-68 years old, using the nonsense syllable test (NST) [Resnick et al., J. Acoust. Soc. Am. Suppl. 1 58, S114 (1975)]. The subjects audited materials at S/N ratios +10 +5 dB their most comfortable listening levels (MCLs). MCLs approximated conversational speech were not significantly different between groups. effects group, condition (quiet, +10, +5) NST subsets, X subset interaction all significant. Interactions involving factor nonsignificant. Confusion matrices similar across groups, including directions errors frequently confused phonemes. Also, older experienced performance decrements on same features that least accurately recognized by younger subjects. findings suggest persons experience decreased consonant ability, but nature phoneme confusions is to individuals. Even though met selection criteria did ones, there an expected shift upward auditory thresholds with within these limits. Sensitivity 8000 Hz correlated scores when controlling age, correlation nonsignificant 8000-Hz threshold. These associations seem implicate phenomena underlying increased problems elderly, appear support concept peripheral deterioration aging even among those hearing.

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