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September 10, 2025

Outdoor sound propagation studies by Rich Raspet in the 1980’s

Key Points

Sound propagation studies revealed the impact of environmental factors like wind and temperature on sound.
Experiments included analyzing shock waves and the effects of porous ground on sound reflection in military settings.
Raspet's research contributed significantly to understanding acoustic phenomena crucial for noise mitigation strategies.
His work spurred further exploration into advanced acoustics and sound management techniques.

Abstract

In 1979, Rich Raspet began working at the U.S. Army Construction Engineering Research Laboratory to help mitigate the noise produced by the Army. He and colleagues conducted experiments in sound production by helicopters and explosive charges and experiments in sound propagation at several US and NATO military training installations. His experiences whetted his appetite for the phenomena of shock waves, refraction of sound by wind and temperature gradients, reflection of sound by porous ground impedance, diffraction by turbulence, and much more, joining the National Center for Physical Acoustics in 1987. Results from one of his experiments started this presenter on a similar journey.

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Cite This Study

Michael J. White (Tue,) studied this question.

synapsesocial.com/papers/68c1b5fe54b1d3bfb60eac15 https://doi.org/https://doi.org/10.1121/10.0037888

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