| Spectral weights in profile listening. | |
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MedLine Citation:
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PMID: 2212301 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The COSS analysis suggested by Berg [B. G. Berg, J. Acoust. Soc. Am. 86, 1743-1746 (1989)] is applied to a profile listening task. The listener's task is to detect an increment in the level of the middle component of an n-component spectrum. The overall level of the components is randomly selected from a 20-dB range on each presentation; thus the detection task is essentially one of detecting a change in spectral shape. To implement the COSS analysis, a small perturbation in level is added to each component of the complex. COSS functions are generated from these perturbations, and the spectral weight that the listener assigns to each component is estimated. Data are reported for n = 3, 5, and 11 components and for perturbations with standard deviations of 0.5, 1, and 2 dB. The estimated weights are similar to those derived for an optimum detector; namely, the level at the signal component is compared with the average level of the nonsignal components. This result supports the view that profile analysis involves an across-channel comparison process. The pattern of weights also provides insight into differences among listeners. In a separate experiment, the spectral weights of a very poor profile listener are estimated, and the pattern of the weights suggests reasons for the inferior detection performance. |
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Authors:
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B G Berg; D M Green |
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: 88 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 1990 Aug |
Date Detail:
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Created Date: 1990-11-16 Completed Date: 1990-11-16 Revised Date: 2006-12-27 |
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: 758-66 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of Florida, Gainesville 32611. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention* Auditory Threshold* Humans Loudness Perception* Perceptual Masking Pitch Discrimination* Psychoacoustics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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