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 | |
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| Publisher | IIAV |
Conference
| Conference | 21st International Congress on Sound and Vibration, ICSV 2014 |
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| Abbreviated title | ICSV |
| Country | China |
| City | Beijing |
| Period | 13/07/14 → 17/07/14 |