| Measuring the critical band for speech. | |
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MedLine Citation:
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PMID: 16521770 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The current experiments were designed to measure the frequency resolution employed by listeners during the perception of everyday sentences. Speech bands having nearly vertical filter slopes and narrow bandwidths were sharply partitioned into various numbers of equal log- or ERBN-width subbands. The temporal envelope from each partition was used to amplitude modulate a corresponding band of low-noise noise, and the modulated carriers were combined and presented to normal-hearing listeners. Intelligibility increased and reached asymptote as the number of partitions increased. In the mid- and high-frequency regions of the speech spectrum, the partition bandwidth corresponding to asymptotic performance matched current estimates of psychophysical tuning across a number of conditions. These results indicate that, in these regions, the critical band for speech matches the critical band measured using traditional psychoacoustic methods and nonspeech stimuli. However, in the low-frequency region, partition bandwidths at asymptote were somewhat narrower than would be predicted based upon psychophysical tuning. It is concluded that, overall, current estimates of psychophysical tuning represent reasonably well the ability of listeners to extract spectral detail from running speech. |
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Authors:
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Eric W Healy; Sid P Bacon |
Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 119 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2006 Feb |
Date Detail:
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Created Date: 2006-03-08 Completed Date: 2006-12-29 Revised Date: 2007-12-03 |
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: 1083-91 Citation Subset: IM |
Affiliation:
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Department of Communication Sciences and Disorders, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29208, USA. ewh@sc.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Audiometry, Speech Female Humans Male Noise / adverse effects Pitch Perception / physiology* Psychoacoustics Speech Acoustics* Speech Intelligibility / physiology* Speech Perception / physiology* Speech Production Measurement |
| Grant Support | |
ID/Acronym/Agency:
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DC01376/DC/NIDCD NIH HHS; DC05795/DC/NIDCD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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