Results 251 to 260 of about 295,337 (289)

Inhomogeneous absorption and geometric acoustics

The Journal of the Acoustical Society of America, 1998
The conventional formulation of geometric acoustics in the presence of inhomogeneous (spatially varying) absorption is examined. This formulation is found to fail under conditions of multipath propagation, because interference between ray paths is not taken into account when the absorptive losses are calculated.
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Geometrical Acoustics in Moving Media

2002
A complete set of linearized equations of fluid dynamics is considered, which is a starting point of geometrical acoustics in inhomogeneous moving media. The linearized equations of fluid dynamics are solved by using the Debye series. As a result the eikonal equation, dispersion equation, transport equation, and the law of acoustic energy conservation ...
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Kinematic acoustic-to-geometric mapping

1995
info:eu-repo/semantics ...
Schoentgen, Jean, Ciocea, Sorin
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Energy Invariant for Geometric Acoustics in a Moving Medium

The Physics of Fluids, 1968
Volume integrals of the quantity E/Ω, where E is the classical acoustic energy density of Rayleigh and Ω is a frequency variable as measured by an observer moving with the medium, are conserved within the assumptions of geometric acoustics in a moving medium whose undisturbed motion is not necessarily steady.
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Geometric Acoustics

2020
Anatoly Kistovich, Konstantin Pokazeev, Tatiana Chaplina   +2 more
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Constructing Geometrical Spaces from Acoustical Representations

2015
This paper presents several models for constructing geometrical spaces from acoustical representations. Through specific spectral representations and associated distance measures each model is designed to highlight or ignore certain types of relationships within the given pitch sets.
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Geometrical Acoustics

1990
Josef Krautkrämer, Herbert Krautkrämer
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Phonurgia Nova. Geometrical Acoustics in the 17th Century

2018
This paper concentrates on the shared experiments on optics, light and acoustics in the 16th century. Most of the scholars involved in this topic have considered the physical behavior of light diffusion to be similar to the sound. According to the direct, catoptric and dioptric observation, propagation of light was used to explain the phenomenon of ...
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Geometrical acoustics

2014
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Statistical-acoustics models of energy decay in systems of coupled rooms and their relation to geometrical acoustics Available to Purchase

Journal of the Acoustical Society of America, 2004
Jason E Summers
exaly