| Autor: |
Michael Vorlaender, Ingo B. Witew |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
The Journal of the Acoustical Society of America. 141:3496-3496 |
| ISSN: |
0001-4966 |
| DOI: |
10.1121/1.4987309 |
| Popis: |
Acoustical measurements are crucial to backing up theories or supporting conclusions in research and practical applications. In concert halls, however, it is well known that small changes to the receiver position yield a measurable change to the impulse response and the calculated single number parameter. This gives raise to the questions whether these spatial fluctuations limit the validity of measurements and whether there are implications for measurement applications? The presented study discusses how a measurement uncertainty approach may provide a new perspective to these problems. Based on array measurements a relationship has been established that quantifies how a change in measurement position leads to an average change to a room acoustic quantity. Strategies as outlined by the “Guide to the Expression of Uncertainty in Measurement” (GUM) are used to determine the bounds in which valid measurement results can be collected. It is discussed how these findings can be considered in applied measurement... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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