Visual Display of Sound Waves in Two-Dimensional Models

Authors

  • W. M. Barss Department of Physics, University of Victoria
  • J. E. Bernard Department of Physics, University of Victoria
  • I. S. Graham Department of Physics, University of Victoria

Abstract

At the British Acoustical Society meeting in Loughborough, England, in 1972, there was a demonstration in which the passage of an ultrasonic pulse through water was made visible by a schlieren system using Ronchi grids. That system was used to display the effect of submerged sections of pipes or other shapes on the reflection and transmission of underwater sound. The present project was devised to apply the same principles to display the reflection of sound from the surfaces of an auditorium, using either air or water as the propagation medium in the model. Such a display, which can illustrate focussing effects and excessive delays between arrivals of direct and reflected sound waves, was desired for demonstrations in connection with a proposed course in architectural acoustics and for testing models of halls designed by local architects for the University or other clients.

Downloads

Published

1977-01-01

How to Cite

1.
Barss WM, Bernard JE, Graham IS. Visual Display of Sound Waves in Two-Dimensional Models. Canadian Acoustics [Internet]. 1977 Jan. 1 [cited 2023 Mar. 28];5(1):15-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/400

Issue

Vol. 5 No. 1 (1977)

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.