Measurements in room acoustics
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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| Format: | Online |
| Język: | angielski |
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Logos Verlag Berlin
2023
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| Hasła przedmiotowe: | |
| Dostęp online: | ONIX_20230123_9783832555290_12 |
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| _version_ | 1869521780674134016 |
|---|---|
| author | Witew, Ingo B. |
| author_browse | Witew, Ingo B. |
| author_facet | Witew, Ingo B. |
| author_sort | Witew, Ingo B. |
| collection | Directory of Open Access Books |
| description | 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. |
| format | Online |
| id | doab-20.500.12854ir-96282 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Logos Verlag Berlin |
| publisherStr | Logos Verlag Berlin |
| record_format | ojs |
| spelling | doab-20.500.12854ir-962822024-04-04T19:19:20Z Measurements in room acoustics Witew, Ingo B. Auditorium acoustics Measurement uncertainty Uncertainty propagation Acoustic Array Measurement Sound field properties bic Book Industry Communication::P Mathematics & science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration & acoustics) bic Book Industry Communication::T Technology, engineering, agriculture bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences::TTA Acoustic & sound engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration and acoustics) thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTA Acoustic and sound engineering 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. 2023-01-23T08:10:38Z 2023-01-23T08:10:38Z 2022 book ONIX_20230123_9783832555290_12 9783832555290 https://directory.doabooks.org/handle/20.500.12854/96282 eng Aachener Beiträge zur Akustik image/jpeg Attribution-NonCommercial-NoDerivatives 4.0 International https://www.logos-verlag.de/cgi-bin/engbuchmid?isbn=5529&lng=eng&id= https://www.logos-verlag.de/ebooks/OA/978-3-8325-5529-0.pdf Logos Verlag Berlin Logos Verlag Berlin 04b263a1-7fba-4491-9eae-1c394ac42fc3 9783832555290 Logos Verlag Berlin 37 292 Berlin/Germany open access |
| spellingShingle | Auditorium acoustics Measurement uncertainty Uncertainty propagation Acoustic Array Measurement Sound field properties bic Book Industry Communication::P Mathematics & science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration & acoustics) bic Book Industry Communication::T Technology, engineering, agriculture bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences::TTA Acoustic & sound engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration and acoustics) thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTA Acoustic and sound engineering Witew, Ingo B. Measurements in room acoustics |
| title | Measurements in room acoustics |
| title_full | Measurements in room acoustics |
| title_fullStr | Measurements in room acoustics |
| title_full_unstemmed | Measurements in room acoustics |
| title_short | Measurements in room acoustics |
| title_sort | measurements in room acoustics |
| topic | Auditorium acoustics Measurement uncertainty Uncertainty propagation Acoustic Array Measurement Sound field properties bic Book Industry Communication::P Mathematics & science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration & acoustics) bic Book Industry Communication::T Technology, engineering, agriculture bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences::TTA Acoustic & sound engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration and acoustics) thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTA Acoustic and sound engineering |
| topic_facet | Auditorium acoustics Measurement uncertainty Uncertainty propagation Acoustic Array Measurement Sound field properties bic Book Industry Communication::P Mathematics & science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration & acoustics) bic Book Industry Communication::T Technology, engineering, agriculture bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences::TTA Acoustic & sound engineering thema EDItEUR::P Mathematics and Science::PH Physics::PHD Classical mechanics::PHDS Wave mechanics (vibration and acoustics) thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTA Acoustic and sound engineering |
| url | ONIX_20230123_9783832555290_12 |
| work_keys_str_mv | AT witewingob measurementsinroomacoustics |