Abstract
In this paper we address a series of so-called local plane wave methods (LPW) to measure acoustic absorption. As opposed to other methods, these methods do not rely on assumptions of the global sound field, like e.g. a plane wave or diffuse field, but are based on a local plane wave assumption. Therefore, the LPW methods can be used for any given surface/absorbing material and any arbitrary sound field. The absorption coefficient can be calculated based on a measurement of the acoustic pressure in a number of points in the vicinity of the absorbing surface. The local plane wave methods are illustrated by some numerical and experimental examples.
| Original language | English |
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| Title of host publication | Proceedings of the 21st International Congress on Sound and Vibration, ICSV 21 |
| Place of Publication | Beijing, China |
| Publisher | International Institute of Acoustics and Vibration (IIAV) |
| Pages | - |
| ISBN (Print) | 9781634392389 |
| Publication status | Published - 13 Jul 2015 |
| Event | 21st International Congress on Sound and Vibration, ICSV 2014 - Beijing, China Duration: 13 Jul 2014 → 17 Jul 2014 Conference number: 21 |
Publication series
| Name | |
|---|---|
| Publisher | IIAV |
Conference
| Conference | 21st International Congress on Sound and Vibration, ICSV 2014 |
|---|---|
| Abbreviated title | ICSV |
| Country | China |
| City | Beijing |
| Period | 13/07/14 → 17/07/14 |
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Cite this
Wijnant, Y. H. (2015). On the local plane wave methods for in situ measurement of acoustic absorption. In Proceedings of the 21st International Congress on Sound and Vibration, ICSV 21 (pp. -). Beijing, China: International Institute of Acoustics and Vibration (IIAV).