| Perceptually relevant parameters for virtual listening simulation of small room acoustics. | |
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MedLine Citation:
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PMID: 19640043 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Various physical aspects of room-acoustic simulation techniques have been extensively studied and refined, yet the perceptual attributes of the simulations have received relatively little attention. Here a method of evaluating the perceptual similarity between rooms is described and tested using 15 small-room simulations based on binaural room impulse responses (BRIRs) either measured from a real room or estimated using simple geometrical acoustic modeling techniques. Room size and surface absorption properties were varied, along with aspects of the virtual simulation including the use of individualized head-related transfer function (HRTF) measurements for spatial rendering. Although differences between BRIRs were evident in a variety of physical parameters, a multidimensional scaling analysis revealed that when at-the-ear signal levels were held constant, the rooms differed along just two perceptual dimensions: one related to reverberation time (T(60)) and one related to interaural coherence (IACC). Modeled rooms were found to differ from measured rooms in this perceptual space, but the differences were relatively small and should be easily correctable through adjustment of T(60) and IACC in the model outputs. Results further suggest that spatial rendering using individualized HRTFs offers little benefit over nonindividualized HRTF rendering for room simulation applications where source direction is fixed. |
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Authors:
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Pavel Zahorik |
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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: 126 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2009-07-30 Completed Date: 2009-10-06 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: 776-91 Citation Subset: IM |
Affiliation:
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Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY 40292, USA. pavel.zahorik@louisville.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Acoustics* Adolescent Adult Algorithms Architecture as Topic Auditory Perception* Computer Simulation* Ear Environment* Female Head Humans Male Models, Theoretical Psychoacoustics Time Factors Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC 008168/DC/NIDCD NIH HHS; R01 DC008168-01A1/DC/NIDCD NIH HHS; R01 DC008168-02/DC/NIDCD NIH HHS; R01 DC008168-03/DC/NIDCD NIH HHS; R03 DC 005709/DC/NIDCD NIH HHS; R03 DC005709-01/DC/NIDCD NIH HHS; R03 DC005709-02/DC/NIDCD NIH HHS; R03 DC005709-03/DC/NIDCD NIH HHS |
| Comments/Corrections | |
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