Journal ArticleDOI
Effects of aircraft noise on an intelligibility task.
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TLDR
The results were in close agreement with previous field studies on the rated "annoyingness" of aircraft sounds and provided no support for the contention that impulsive helicopter noise ("blade-slap") is disruptive in ways not accoullfed for by simple measures of loudness level.Abstract:
The recorded sounds of three aircraft (T28 propeller airplane, Bell 204B helicopter, and Bell 206 helicopter) flying directly overhead at 300 ft and 900 ft (91.4 m and 274.3 m) were played While subjects engaged in an audiovisual task. The subjects viewed a series of 35-mm color slides of everyday scenes and heard them described by one-word labels. Each label was to be identified as "Right," "Wrong," or "Unheard." The results were in close agreement with previous field studies on the rated "annoyingness" of aircraft sounds and provided no support for the contention that impulsive helicopter noise ("blade-slap") is disruptive in ways not accoullfed for by simple measures of loudness levelread more
Citations
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Journal ArticleDOI
A neuro-fuzzy approach for prediction of human work efficiency in noisy environment
Zaheeruddin,Garima +1 more
TL;DR: An attempt is made to develop a neuro-fuzzy model for predicting the effects of noise pollution on human work efficiency as a function of noise level, type of task, and exposure time.
Journal ArticleDOI
Performance Effects of Noise Intensity, Psychological Set, and Task Type and complexity:
TL;DR: The only significant main effect of noise was a facilitation of tracking performance, and there were several significant interactions of noise with the other independent variables.
Journal ArticleDOI
The effects of static multiple sources of noise on the visual search component of human inspection
TL;DR: In this paper, the effects of noise on visual search performance were investigated and the results indicated that single source noise enhances search performance of difficult tasks. But, the results of this study can be applied to inspection tasks conducted in workplace conditions that are similar to those employed in the current study.
Proceedings ArticleDOI
Fuzzy modelling of human work efficiency in noisy environment
TL;DR: An attempt has been made to develop a fuzzy model for determining the work efficiency of humans as a function of noise level, exposure time, and the type of task, based on the concept of fuzzy logic.
References
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ReportDOI
Subjective Ratings of Annoyance Produced by Rotary-Wing Aircraft Noise
TL;DR: In this paper, subjective ratings of annoyance caused by helicopter noise relative to that caused by fixed-wing aircraft were obtained and a comparison of the subjective ratings with various physical predictors of annoyance indicated that the integrated A-weighted level (dBA) predicted as well as any of the predictors with the D2 weighted level and EPNL almost equivalent.
Helicopter noise regulations: An industry perspective
TL;DR: A review of helicopter noise measurement programs and noise reduction/economic studies of FAA is given along with a critique of a study which addresses the economic impact of noise reduction on helicopter noise.
A subjective field study of helicopter blade-slap noise
TL;DR: In this article, the effects of impulsiveness on the noisiness of helicopters are examined by varying the main rotor speed while maintaining a constant airspeed, which resulted in other characteristics of the noise being held relatively constant.
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