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Measuring Speech Intelligibility and Hearing-Aid Benefit Using Everyday Conversational Sentences in Real-World Environments
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In: Front Neurosci (2022)
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Development of the Everyday Conversational Sentences in Noise test
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In: J Acoust Soc Am (2020)
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Abstract:
To capture the demands of real-world listening, laboratory-based speech-in-noise tasks must better reflect the types of speech and environments listeners encounter in everyday life. This article reports the development of original sentence materials that were produced spontaneously with varying vocal efforts. These sentences were extracted from conversations between a talker pair (female/male) communicating in different realistic acoustic environments to elicit normal, raised and loud vocal efforts. In total, 384 sentences were extracted to provide four equivalent lists of 16 sentences at the three efforts for the two talkers. The sentences were presented to 32 young, normally hearing participants in stationary noise at five signal-to-noise ratios from −8 to 0 dB in 2 dB steps. Psychometric functions were fitted for each sentence, revealing an average 50% speech reception threshold (SRT(50)) of −5.2 dB, and an average slope of 17.2%/dB. Sentences were then level-normalised to adjust their individual SRT(50) to the mean (−5.2 dB). The sentences may be combined with realistic background noise to provide an assessment method that better captures the perceptual demands of everyday communication.
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Keyword:
Psychological and Physiological Acoustics
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URL: https://doi.org/10.1121/10.0000780 http://www.ncbi.nlm.nih.gov/pubmed/32237858 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7060086/
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Eliciting naturalistic conversations: a method for assessing communication ability, subjective experience, and the impacts of noise and hearing impairment
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Measuring communication difficulty through effortful speech production during conversation
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