Measurements in Room Acoustics : Uncertainties and Influence of the Measurement Position
Regardless of the field, measurements are essential for validating theories and making well-founded decisions. A criterion for the validity and comparability of measured values is their uncertainty. Still, in room acoustical measurements, the application of established rules to interpret uncertainti...
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Logos Verlag Berlin
2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=3541256&site=ehost-live header: @attributes: shortDbName: nlebk uiTerm: 3541256 longDbName: eBook Collection (EBSCOhost) uiTag: AN controlInfo: bkinfo: btl: Measurements in Room Acoustics : Uncertainties and Influence of the Measurement Position aug: au: Ingo B. Witew sertl: Aachener Beiträge Zur Akustik isbn: 9783832555290 imageinfo: pubinfo: dt: @attributes: year: 2022 month: 01 day: 01 dtAvail: @attributes: year: 2023 month: 04 day: 05 pub: Logos Verlag Berlin pubContract: Logos Verlag Berlin GmbH place: Berlin price: 0.01 limitsGroup: maxCheckoutDays: 1500 pda: N printPagesOffline: 100 printPagesOnline: 100 previewPages: 10000 prePubGroup: dewey: @attributes: class: 729.29 item: 729 .29 lc: @attributes: class: NA2800 item: NA 2800 artinfo: ui: 3541256 1374587732 formats: fmt: @attributes: type: EB doid: NL$3541256$PDF caption: PDF download: Y tig: atl: Measurements in Room Acoustics : Uncertainties and Influence of the Measurement Position ptl: Measurements in Room Acoustics aug: au: Ingo B. Witew su: Sound--Measurement Architectural acoustics--Measurement sug: subj: TECHNOLOGY & ENGINEERING / Electronics / General ARCHITECTURE / General Sound--Measurement Architectural acoustics--Measurement ab: Regardless of the field, measurements are essential for validating theories and making well-founded decisions. A criterion for the validity and comparability of measured values is their uncertainty. Still, in room acoustical measurements, the application of established rules to interpret uncertainties in measurement is not yet widespread. This raises the question of the validity and interpretability of room acoustical measurements. This work discusses the uncertainties in measuring room acoustical single-number quantities that complies with the framework of the ``Guide to the Expression of Uncertainty in Measurement''(GUM). Starting point is a structured search of variables that potentially influence the measurement of room impulse responses. In a second step, this uncertainty is propagated through the algorithm that determines single-number quantities. A second emphasis is placed on the investigation of spatial fluctuations of the sound field in auditoria. The spatial variance of the sound field in combination with an uncertain measurement position marks a major contribution to the overall measurement uncertainty. To reach general conclusions, the relation between changes in the measurement location and the corresponding changes in measured room acoustical quantities is investigated empirically in extensive measurement series. This study shows how precisely a measurement position must be defined to ensure a given uncertainty of room acoustical single-number quantities. The presented methods form a foundation that can be exibly extended in future investigations to include additional influences on the measurement uncertainty. pubtype: eBook doctype: Book ougenre: Book language: English copyright: @attributes: flag: N copyrightText: holdings: @attributes: islocal: N |
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