| Intensity-importance functions for bandlimited monosyllabic words. | |
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MedLine Citation:
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PMID: 11931319 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A study was carried out to determine the relative importance to speech intelligibility of different intensities within the speech dynamic range. The functions that were derived are analogous to previous descriptions of the relative importance of different frequencies and are referred to here as intensity-importance functions (IIFs). They were obtained as follows. Sharply filtered bands of speech (NU6 monosyllabic words) were mixed with filtered noise and presented alone or in pairs at 19 signal-to-noise ratios (-25 to 41 dB). When paired bands were tested, the level and signal-to-noise ratio (SNR) of one band were held constant while the level and SNR of the other band were varied. The listeners were 100 normal hearers, organized into five 20-person groups. Each group provided speech recognition data for one of five frequency regions (141-562, 562-1122, 1122-1778, 1778-2818, and 2818-8913 Hz). Comparisons of the results for each group indicated that IIFs vary with frequency and SNR. Current methods for predicting intelligibility from physical measurements of speech audibility would need to be revised in order to take such findings into consideration. |
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Authors:
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Gerald A Studebaker; Robert L Sherbecoe |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 111 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2002 Mar |
Date Detail:
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Created Date: 2002-04-04 Completed Date: 2002-04-30 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 1422-36 Citation Subset: IM |
Affiliation:
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Memphis Speech and Hearing Center, The University of Memphis, Tennessee 38105, USA. gstudbkr@memphis.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Female Humans Loudness Perception* Male Pitch Perception* Sound Spectrography* Speech Acoustics* Speech Intelligibility* Speech Perception |
| Grant Support | |
ID/Acronym/Agency:
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5 R01 DC 00154/DC/NIDCD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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