| Effects of bandwidth on auditory localization with a noise masker. | |
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MedLine Citation:
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PMID: 20000933 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Although high-frequency content is known to be critically important for the accurate location of isolated sounds, relatively little is known about the importance of high-frequency spectral content for the localization of sounds in the presence of a masker. In this experiment, listeners were asked to identify the location of a pulsed-noise target in the presence of a randomly located continuous noise masker. Both the target and masker were low-pass filtered at one of eight cutoff frequencies ranging from 1 to 16 kHz, and the signal-to-noise ratio was varied from -12 to +12 dB. The results confirm the importance of high frequencies for the localization of isolated sounds, and show that high-frequency content remains critical in cases where the target sound is masked by a spatially separated masker. In fact, when two sources of the same level are randomly located in space, these results show that a decrease in stimulus bandwidth from 16 to 12 kHz might result in a 30% increase in overall localization error. |
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Authors:
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Douglas S Brungart; Brian D Simpson |
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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: 126 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2009-12-16 Completed Date: - Revised Date: - |
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: 3199-208 Citation Subset: IM |
Affiliation:
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Air Force Research Laboratory, 2610 Seventh Street, WPAFB, Ohio 45433, USA. douglas.brungart@us.army.mil |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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