Acceptable range of speech level for both young and aged listeners in reverberant and quiet sound fields.

Acceptable range of speech level for both young and aged listeners in reverberant and quiet sound fields. Research Abstract Details 

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Acceptable range of speech level for both young and aged listeners in reverberant and quiet sound fields. Abstract Text:

Hayato Sato,Hiroshi Sato,Masayuki Morimoto,Ryo Ota,Hayato Sato,Hiroshi Sato,Masayuki Morimoto,Ryo Ota,Hayato Sato,Hiroshi Sato,Masayuki Morimoto,Ryo Ota,

The speech level of verbal information in public spaces should be determined to make it acceptable to as many listeners as possible, while simultaneously maintaining maximum intelligibility and considering the variation in the hearing levels of listeners. In the present study, the universally acceptable range of speech level in reverberant and quiet sound fields for both young listeners with normal hearing and aged listeners with hearing loss due to aging was investigated. Word intelligibility scores and listening difficulty ratings as a function of speech level were obtained by listening tests. The results of the listening tests clarified that (1) the universally acceptable ranges of speech level are from 60 to 70 dBA, from 56 to 61 dBA, from 52 to 67 dBA and from 58 to 63 dBA for the test sound fields with the reverberation times of 0.0, 0.5, 1.0 and 2.0 s, respectively, and (2) there is a speech level that falls within all of the universally acceptable ranges of speech level obtained in the present study; that speech level is around 60 dBA.

Acceptable range of speech level for both young and aged listeners in reverberant and quiet sound fields. Publishing Authors By Initials

H Sato,H Sato,M Morimoto,R Ota,H Sato,H Sato,M Morimoto,R Ota,H Sato,H Sato,M Morimoto,R Ota,

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Acceptable range of speech level for both young and aged listeners in reverberant and quiet sound fields. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Journal of the Acoustical Society of America

VOLUME: 122

Page Numbers: 1616

Journal Abbreviation: J. Acoust. Soc. Am.

ISSN: 1520-8524

DAY: 11

MONTH: Sep

YEAR: 2007

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LANGUAGE: eng

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Grant and Affiliation Information for Acceptable range of speech level for both young and aged listeners in reverberant and quiet sound fields.

AFFILIATION: Environmental Acoustics Laboratory, Faculty of Engineering, Kobe University, Rokko, Nada, Kobe 657-8501, Japan.

Country: United States

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MEDLINETA: J Acoust Soc Am

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