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Bücher Englische Bücher Wissen & Bildung Naturwissenschaft, Medizin, Informatik, Technik Physik & Astronomie Mechanik & Akustik Measurements in room acoustics
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Measurements in room acoustics
Ingo B. Witew (Broschiert, Englisch)
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Beschreibung
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. Dieses Produkt haben wir gerade leider nicht auf Lager.
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Bis zu 50 % günstiger als neu
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Technische Daten
Erscheinungsdatum
03.10.2022
Sprache
Englisch
EAN
9783832555290
Herausgeber
Logos Berlin
Serien- oder Bandtitel
Aachener Beiträge zur Akustik
Sonderedition
Nein
Autor
Ingo B. Witew
Seitenanzahl
292
Einbandart
Broschiert
Buch Untertitel
Uncertainties and influence of the measurement position
Hersteller: Logos Verlag Berlin GmbH, Georg-Knorr-Str. 4, Geb. 10, Berlin, Deutschland, 12681, redaktion@logos-verlag.de
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