Abstract
The noise reduction of a (low) noise barrier can be enhanced by using an additional element with quarter-wavelength resonators with varying depths. The so-called WHISwall or WHIStop deflects sound upwards for specific frequencies creating an additional sound reduction. Different experiments on the WHISwall and WHIStop are performed as input for model validation. The development and validation of the model are described in a separate paper. In this paper the measurement campaign and its results are presented. We performed measurements on two setups. The first setup consists of a 1.1m high WHISwall, a 1.1m high noise barrier and a reference section (without noise measure). Measurements have been conducted with both an artificial sound source and pass-by measurements with light and heavy motor vehicles. In a second test setup, the WHIStop was placed on top of a 4m high noise barrier, and the diffraction was determined according the European standard EN 1793-4.
Original language | English |
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Title of host publication | Proceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering |
Editors | Tyler Dare, Stuart Bolton, Patricia Davies, Yutong Xue, Gordon Ebbitt |
Publisher | The Institute of Noise Control Engineering of the USA, Inc. |
Pages | 2654-2664 |
Number of pages | 11 |
ISBN (Electronic) | 9781732598652 |
DOIs | |
Publication status | Published - 2021 |
Event | 50th International Congress and Exposition of Noise Control Engineering, INTER-NOISE 2021 - Virtual Conference, Washington, United States Duration: 1 Aug 2021 → 5 Aug 2021 Conference number: 50 |
Publication series
Name | Proceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering |
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Conference
Conference | 50th International Congress and Exposition of Noise Control Engineering, INTER-NOISE 2021 |
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Abbreviated title | INTER-NOISE 2021 |
Country/Territory | United States |
City | Washington |
Period | 1/08/21 → 5/08/21 |