Noise Testing of Vehicles - Acoustic Propagation Phenomena

Authors

  • J. E. Piercy Physics Div., National Research Council (Ottawa/Canada)
  • T. F.W. Embleton Physics Div., National Research Council (Ottawa/Canada)

Abstract

A number of propagation phenomena which cause variability in the noise testing of vehicles using standard procedures have been isolated and studied. Included are the effects of interference produced by reflection from various ground surfaces, the effects of refraction caused by wind and temperature gradients in the atmosphere, changes in sound level due to the wake of the vehicle, and the effects of normal atmospheric turbulence.

Downloads

Published

1980-10-01

How to Cite

1.
Piercy JE, Embleton TF. Noise Testing of Vehicles - Acoustic Propagation Phenomena. Canadian Acoustics [Internet]. 1980 Oct. 1 [cited 2023 Sep. 23];8(4):29-35. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/448

Issue

Vol. 8 No. 4 (1980)

Section

Technical Articles

License

Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i)    to publish, reproduce, distribute, display and store the Contribution;
ii)    to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii)    to exploit all subsidiary rights in the Contribution,
iv)    to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v)    to licence any third party to do any or all of the above.