Acoustical Effects of Wind Screens on Infrasound Measurements

Authors

  • Todd Busch Swallow Acoustic Consultants Ltd
  • Pearlie Yung Swallow Acoustic Consultants Ltd
  • Jeremy Thorbahn Swallow Acoustic Consultants Ltd
  • John Swallow Swallow Acoustic Consultants Ltd

Abstract

Swallow Acoustic Consultants Ltd (SACL) conducted a two-week long measurement program to determine audible sound and infrasound levels at five homes in the Municipality of Kincardine, Ontario. The results of these acoustical measurements, conducted both outside and inside of each home, are discussed; along with comparisons to meteorological data obtained at one of the residences. In the absence of technically substantive information to the contrary, a standard 60 mm diameter open-cell foam wind screen was utilized for both outdoor and indoor measurements. Wind speeds ranged from 0 to 17 m/s with 24-hr daily averages as high as 12 m/s. During the course of the data analysis, of unweighted, A-weighted, and G-weighted results, SACL noted that high wind speeds appeared to have compromised some of the data collection. A methodology for filtering good/bad data is discussed. Furthermore, SACL undertook a wide ranging literature review of the technical and regulatory documentation pertaining to the use of wind screens. After this review, the lack of technical justification for the use of a wind screen has become apparent, despite their conventional utilization.

Author Biographies

Todd Busch, Swallow Acoustic Consultants Ltd

MASc, PEng, PE, INCE Bd Cert. Studied noise control for Master's degree; worked professionally in acoustics for 20 years since 1994.

Pearlie Yung, Swallow Acoustic Consultants Ltd

M.Sc., P.Eng.

Jeremy Thorbahn, Swallow Acoustic Consultants Ltd

M.Sc., P.Phys.

John Swallow, Swallow Acoustic Consultants Ltd

M.A.Sc., P.Eng., LEED AP

Published

2016-08-16

How to Cite

1.
Busch T, Yung P, Thorbahn J, Swallow J. Acoustical Effects of Wind Screens on Infrasound Measurements. Canadian Acoustics [Internet]. 2016 Aug. 16 [cited 2021 Dec. 5];44(3). Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2976

Issue

Section

Proceedings of the Acoustics Week in Canada

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