In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 64, No. S1 ( 1978-11-01), p. S172-S172
Abstract:
The field experiments of the noise propagating over the ground were carried out, varying the combination of height of an artificial noise source and a receiving point. We pay attention to the excess attenuation obtained from the noise propagating over the ground. The results obtained are as follows: (1) The excess attenuation of the low frequency obtained from the noise propagating over the soft ground is larger than we expected and also affected by the wind; (2) the excess attenuation obtained is, as a whole, larger in summer than in winter. From the data obtained, the empirical equation predicting the excess attenuation is introduced. [T. F. Embleton, J. E. Piercy, and N. Olson, J. Acoust. Soc. Am. 59, 267–277 (1976)] Furthermore, referring to the data measured by other researchers [P. H. Parkin and W. E. Scholes, J. Sound Vib. 2, 353–374 (1965)] , it is shown that the equation is applicable to predict the excess attenuation over the ground.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1978
detail.hit.zdb_id:
1461063-2
