| An overview of issues concerning loudness measurement versus time. | |
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MedLine Citation:
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PMID: 20330626 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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An overview of present methodologies for loudness measurement, especially considering time-varying sounds, is given. An ideal loudness-measuring method would mimic both the spectral and temporal acuities of human hearing including the relationship of those acuities at all audible frequencies. Due in part to practical considerations in their development history, none of the present set of loudness-measurement tools offers fully accurate representation of subjective time-frequency impressions. The most general limitations are insufficient spectral resolution and frequency-dependent time resolution. A recently standardized method well matches the temporal behavior of subjective loudness perception but only above a certain frequency due to lower-frequency time-resolution limits imposed by prior standards necessitating compliance. Examples will be shown of trade-offs and varying balances among several critical factors: time and frequency resolution at all audible frequencies, representation of temporal masking and growthrelease effects, and appropriate spectral representations over varying combinations of broadband and narrowband signals. |
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Authors:
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Wade R Bray |
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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: 127 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-03-24 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: 1880 Citation Subset: IM |
Affiliation:
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HEAD Acoust., Inc., 6964 Kensington Rd., Brighton, MI 48116, wbray@headacoustics.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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