Some characteristics of noise in air-conditioned landscaped offices

Shiu Keung Tang; J. W C Chan

doi:10.1016/0003-682X(96)00007-2

Some characteristics of noise in air-conditioned landscaped offices

Shiu Keung Tang, J. W C Chan

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

9 Citations (Scopus)

Abstract

In the present study, noise measurements were carried out in 26 air-conditioned landscaped offices during lunch and office hours. The noise spectra show that, in general, the noise from office activities is of a frequency higher than 500 Hz. A-, B-and C-weighted sound levels are also calculated and it is found that linear relationships exist between these weighted levels. In addition, simple formulae are proposed for the estimations of noise criterion (NC) and noise rating (NR) from the A-weighted sound level which is also known as the equivalent sound pressure level. The air-conditioning systems affect the noise levels, NC and NR, but not the basic relationships between weighted sound levels, NC and NR.

Original language	English
Pages (from-to)	249-267
Number of pages	19
Journal	Applied Acoustics
Volume	48
Issue number	3
DOIs	https://doi.org/10.1016/0003-682X(96)00007-2
Publication status	Published - 1 Jul 1996

Keywords

Indoor environment
Noise criteria
Room acoustics

ASJC Scopus subject areas

Acoustics and Ultrasonics

More information

10.1016/0003-682X(96)00007-2

Cite this

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AB - In the present study, noise measurements were carried out in 26 air-conditioned landscaped offices during lunch and office hours. The noise spectra show that, in general, the noise from office activities is of a frequency higher than 500 Hz. A-, B-and C-weighted sound levels are also calculated and it is found that linear relationships exist between these weighted levels. In addition, simple formulae are proposed for the estimations of noise criterion (NC) and noise rating (NR) from the A-weighted sound level which is also known as the equivalent sound pressure level. The air-conditioning systems affect the noise levels, NC and NR, but not the basic relationships between weighted sound levels, NC and NR.

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Some characteristics of noise in air-conditioned landscaped offices

Abstract

Keywords

ASJC Scopus subject areas

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