| Role of masker predictability in the cocktail party problem. | |
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MedLine Citation:
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PMID: 19206808 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In studies of the cocktail party problem, the number and locations of maskers are typically fixed throughout a block of trials, which leaves out uncertainty that exists in real-world environments. The current experiments examined whether there is (1) improved speech intelligibility and (2) increased spatial release from masking (SRM), as predictability of the number/locations of speech maskers is increased. In the first experiment, subjects identified a target word presented at a fixed level in the presence of 0, 1, or 2 maskers as predictability of the masker configuration ranged from 10% to 80%. The second experiment examined speech reception thresholds and SRM as (a) predictability of the masker configuration is increased from 20% to 80% and/or (b) the complexity of the listening environment is decreased. In the third experiment, predictability of the masker configuration was increased from 20% up to 100% while minimizing the onset delay between maskers and the target. All experiments showed no effect of predictability of the masker configuration on speech intelligibility or SRM. These results suggest that knowing the number and location(s) of maskers may not necessarily contribute significantly to solving the cocktail party problem, at least not when the location of the target is known. |
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Authors:
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Gary L Jones; Ruth Y Litovsky |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 124 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2008 Dec |
Date Detail:
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Created Date: 2009-02-11 Completed Date: 2009-04-23 Revised Date: 2012-01-18 |
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: 3818-30 Citation Subset: IM |
Affiliation:
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Department of Physiology, University of Wisconsin-Madison, Madison, Wisconsin 53705, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adolescent Adult Cues Female Humans Male Noise / adverse effects* Pattern Recognition, Physiological Perceptual Masking* Speech Intelligibility* Speech Perception* Speech Reception Threshold Test Time Factors Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC003083-13/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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