@inproceedings{04d4aa73816a4120b543a362c5e4c43f,
title = "Sound absorption by tree bark",
abstract = "Scattering of sound waves by trunks is part of the noise reducing potential of tree belts, and it has been shown before that the absorbing properties of the trunks are relevant in this respect. Detailed information on bark absorption is currently very limited. Therefore, laboratory experiments were conducted with an impedance tube to measure the bark sound absorption of various species, including variations in bark thickness, tree age, density, and trunk diameter. Preliminary measurements were made to define the relevant part of the trunk for its acoustic absorption and to come to a reproducible sample handling procedure. The measurements show that the absorption (at normal incidence) is generally below 0.1 for the deciduous species considered, and that there is a small variation in between them.",
keywords = "Impedance tube, Sound absorption, Tree bark",
author = "Mengmeng Li and \{van Renterghem\}, Timothy and Jian Kang and Dick Botteldooren",
note = "Publisher Copyright: {\textcopyright} 2019 Proceedings of the International Congress on Acoustics. All rights reserved.; 23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019 ; Conference date: 09-09-2019 Through 23-09-2019",
year = "2019",
doi = "10.18154/RWTH-CONV-239236",
language = "英语",
series = "Proceedings of the International Congress on Acoustics",
publisher = "International Commission for Acoustics (ICA)",
pages = "582--587",
editor = "Martin Ochmann and Vorlander Michael and Janina Fels",
booktitle = "Proceedings of the 23rd International Congress on Acoustics",
}