| Binaural comodulation masking release: effects of masker interaural correlation. | |
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MedLine Citation:
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PMID: 17225415 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Binaural detection was examined for a signal presented in a narrow band of noise centered on the on-signal masking band (OSB) or in the presence of flanking noise bands that were random or comodulated with respect to the OSB. The noise had an interaural correlation of 1.0 (No), 0.99 or 0.95. In No noise, random flanking bands worsened Spi detection and comodulated bands improved Spi detection for some listeners but had no effect for other listeners. For the 0.99 or 0.95 interaural correlation conditions, random flanking bands were less detrimental to Spi detection and comodulated flanking bands improved Spi detection for all listeners. Analyses based on signal detection theory indicated that the improvement in Spi thresholds obtained with comodulated bands was not compatible with an optimal combination of monaural and binaural cues or to across-frequency analyses of dynamic interaural phase differences. Two accounts consistent with the improvement in Spi thresholds in comodulated noise were (1) envelope information carried by the flanking bands improves the weighting of binaural cues associated with the signal; (2) the auditory system is sensitive to across-frequency differences in ongoing interaural correlation. |
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Authors:
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Joseph W Hall; Emily Buss; John H Grose |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 120 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2006 Dec |
Date Detail:
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Created Date: 2007-01-17 Completed Date: 2007-02-15 Revised Date: 2011-05-05 |
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: 3878-88 Citation Subset: IM |
Affiliation:
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Department of Otolaryngology/Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599, USA. jwh@med.unc.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Auditory Perception / physiology* Cues Female Humans Male Middle Aged Perceptual Masking* |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC000397-21/DC/NIDCD NIH HHS; R01 DC00397/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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