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Effect of Ground on Near-Horizontal Sound Propagation
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English
Abstract
The propagation of sound from a small source over the ground, considered as an impedance boundary, is discussed theoretically and compared with measurements over short grass and asphalt. Interference phenomena relevant to the measurement configurations in SAE standard procedures for testing vehicles are emphasized. The effect of the ground impedance on propagation at the longer distances relevant to airport and highway design is also discussed.
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Topic
Citation
Piercy, J. and Embleton, T., "Effect of Ground on Near-Horizontal Sound Propagation," SAE Technical Paper 740211, 1974, https://doi.org/10.4271/740211.Also In
References
- SAE Recommended Practice Exterior Sound Level for Heavy Trucks and Buses - SAE J366a SAE Handbook SAE Standard Sound Level for Passenger Cars and Light Trucks - SAE J986a SAE Handbook SAE Recommended Practice Exterior Sound Level for Snowmobiles - SAE J192 SAE Handbook
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