Revised Criteria for Noise in Buildings
About: This article is published in Noise Control.The article was published on 1957-01-01. It has received 76 citations till now. The article focuses on the topics: Noise.
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TL;DR: Test the performance of a low-cost IEQ monitoring system (SAMBA) and the results of the Monte Carlo simulation show that continuous monitoring systems are better at characterising long-term performance than ad hoc measurement strategies using precision equipment.
48 citations
Cites background from "Revised Criteria for Noise in Build..."
...It addresses background noise (e.g. Beranek, 1957 and Beranek, 1960), with particular emphasis on noise from HVAC equipment operation....
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TL;DR: In this article, the effects of spatial factors extracted from the interaural cross-correlation function (IACF) on annoyance of noise stimuli are examined, and the results show that annoyance increased by increasing the fluctuations of IACC as well as the SPL, while the previously developed indices to measure sound pressure levels and frequency characteristics cannot fully explain the psychological effects of noise.
44 citations
TL;DR: Investigation of differences in task performance and perception under six non-time-varying ventilation-type background noise spectra with differing tonality showed that performance scores did not change significantly across the six noise conditions, but there were differences in subjective perception.
Abstract: This research investigated differences in task performance and perception under six non-time-varying ventilation-type background noise spectra with differing tonality. The results were related to five indoor noise criteria systems: noise criteria, balanced noise criteria, room criteria, room criteria mark II, and the A-weighted equivalent sound pressure level (LAeq). These criteria systems are commonly used in the U.S. building industry, but concerns exist over whether they are appropriate for all noise situations. Thirty test subjects completed three types of performance tasks (typing, reasoning, and math) and answered questions about their perception of the indoor environment under each noise condition. Results showed that performance scores did not change significantly across the six noise conditions, but there were differences in subjective perception. For example, perception trends for tonality, annoyance, and distraction changed based on the frequency and prominence of discrete tones in noise. Howev...
38 citations
01 Jan 2002
TL;DR: Ando et al. as mentioned in this paper investigated the characteristics of a flushing toilet noise in a bedroom on the downstairs floor in terms of the temporal and spatial factors extracted from the autocorrelation function and cross-correlation function based on the model of the human auditory-brain system.
Abstract: In a three-floored apartment, located in a quiet living area of Kobe, one resident was very annoyed by the flushing noise of an upstairs toilet that could be heard in the downstairs bedroom. The resident accused the construction company of improper construction, although the sound pressure level was only about 35 dBA. The purpose of this study is to clarify the characteristics of a flushing toilet noise in a bedroom on the downstairs floor in terms of the temporal and spatial factors extracted from the autocorrelation function and cross-correlation function based on the model of the human auditory-brain system [Ando, Y. (1998). Architectural Acoustics Blending Sound Sources, Sound Fields, and Listeners: AIP Press/Springer-Verlag, New York]. The results of the measurement showed that the temporal and spatial factors for the flushing toilet noise changed dramatically as a function of time. According to the human auditory-brain system, temporal factors of sound signals are processed by the left hemisphere, and spatial factors of sound signals are processed by the right hemisphere. The flushing noise of an upstairs toilet stimulates dramatically both the left and right hemispheres, which are sensitive to change in both the temporal and spatial factors.
36 citations
Additional excerpts
...criterion (NCB) curves were developed to measure the SPL and its frequency characteristics [2-4]....
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TL;DR: In this article, the analysis of infrastructures and of social sciences from a sociotechnical point of view is addressed, with the main objective of providing both practitioners and academics with tools to carry out more sustainable and context-adapted decisions.
24 citations