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Effects Of Speech Signal Type And Attention On Acceptable Noise Level In Elderly, Hearing-Impaired Listeners, Jennifer Susan Mundorff
Effects Of Speech Signal Type And Attention On Acceptable Noise Level In Elderly, Hearing-Impaired Listeners, Jennifer Susan Mundorff
Dissertations, 2014-2019
The primary objective of this study was to determine if acceptable noise levels (ANLs) in elderly, hearing-impaired listeners were dependent on speech intelligibility and listener attention levels. Acceptable noise levels (ANLs), expressed in decibels, is defined as the maximum background noise level that is acceptable while listening to and following a story. Connected speech test (CST) sentences were recorded with clear speech, conversational speech and temporally altered, fast-rate speech. Thirty-five, elderly, hearing-impaired individuals (61-97 years, M=75) with symmetrical, bilateral sensorineural hearing loss participated. Most comfortable listening levels (MCL) and background noise level (BNL) measurements were completed for each speech stimulus …