- When a wave reaches a wall or other
obstacle, it is either reflected or scattered:
- reflection occurs when the surface is flat for plane
waves, or curved with the appropriate radius (for spherical waves);
- scattering occurs when the surface has variations on the
scale of the spatial wavelength.
Absorption
- In air, there is always significant additional
(frequency-dependent) loss caused by air absorption.
- Wave propagation in vibrating strings undergoes an
analogous absorption loss, as does the propagation of nearly every
other kind of wave in the physical world.
``Music 206: Digital Waveguides''
by Tamara Smyth,
Department of Music, University of California, San Diego (UCSD).
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Copyright © 2019-05-01 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<trsmyth@ucsd.edu>