Estimation of Environmental Noise Impacts within Architectural Spaces.

Chang, Y. S. ; Liebich, R. E. ; Chun, K. C.

Technical Information Center Oak Ridge Tennessee

关键词: Noise pollution;    Sound source spectra;    Room spaces;    Models;    Environmental impact assessments;   

RP-ID  :  DE200242935

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Public Law 91-596, 'Occupational Safety and Health Act of 1970,' Dec. 29, 1970, stimulated interest in modeling the impacts of interior noise on employees, as well as the intelligibility of interior public-address and other speech intra-communication systems. The classical literature on this topic has primarily featured a statistical uniform diffuse-field model. This was pioneered by Leo L. Beranek in the 1950s, based on energy-density formulations at the former Bell Telephone (AT&T) Laboratories in the years from 1930 to 1950. This paper compares the classical prediction approach to the most recent statistical methods. Such models were developed in the late 1970s and included innovations such as consideration of irregularly shaped (e.g., L-shaped) interior room spaces and coupled spaces.