Aircraft En Route Noise Annoyance
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Annoyance Caused By Aircraft En Route Noise
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Author : David A. McCurdy
language : en
Publisher:
Release Date : 1992
Annoyance Caused By Aircraft En Route Noise written by David A. McCurdy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aerodynamic noise categories.
Aircraft En Route Noise Annoyance
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Author : David A. McCurdy
language : en
Publisher:
Release Date : 1990
Aircraft En Route Noise Annoyance written by David A. McCurdy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
Annoyance Caused By Aircraft En Route Noise
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-30
Annoyance Caused By Aircraft En Route Noise written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-30 with categories.
A laboratory experiment was conducted to quantify the annoyance response of people on the ground to enroute noise generated by aircraft at cruise conditions. The en route noises were ground level recordings of eight advanced turboprop aircraft flyovers and six conventional turbofan flyovers. The eight advanced turboprop enroute noises represented the NASA Propfan Test Assessment aircraft operating at different combinations of altitude, aircraft Mach number, and propeller tip speed. The conventional turbofan en route noises represented six different commercial airliners. The overall durations of the en route noises varied from approximately 40 to 160 sec. In the experiment, 32 subjects judged the annoyance of the en route noises as well as recordings of the takeoff and landing noises of each of 5 conventional turboprop and 5 conventional turbofan aircraft. Each of the noises was presented at three sound pressure levels to the subjects in an anechoic listening room. Analysis of the judgments found small differences in annoyance between three combinations of aircraft type and operation. Current tone and corrections did not significantly improve en route annoyance prediction. The optimum duration-correction magnitude for en route noise was approximately 1 dB per doubling of effective duration. Mccurdy, David A. Langley Research Center RTOP 535-03-11-03...
Laboratory Study Of Annoyance To Combined Airplane And Road Traffic Noise
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Author : Clemans A. Powell
language : en
Publisher:
Release Date : 1979
Laboratory Study Of Annoyance To Combined Airplane And Road Traffic Noise written by Clemans A. Powell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Airplanes categories.
Audibility And Annoyance Of En Route Noise Of Unducted Fan Engines
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Author : S. A. Fidell
language : en
Publisher:
Release Date : 1990
Audibility And Annoyance Of En Route Noise Of Unducted Fan Engines written by S. A. Fidell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Airplanes categories.
Aircraft flyovers heard in high ambient noise urban environments are composed in large part of high absolute level, broadband noise. In contrast, noise exposure created en route by aircraft powered by unducted fan engines is expected to be relatively low in level, but to contain prominent low frequency tonal energy. These tones may be readily audible in low ambient noise rural environments. The annoyance of noise intrusions of low absolute level has been shown to be closely related to their audibility. Thus, one way to predict the annoyance of high altitude overflights by aircraft equipped with unducted fan engines is to estimate their audibility relative to that of conventionally powered aircraft in various ambient noise conditions. These predictions may be converted into estimates of the probability of high annoyance by means of a dosage-response relationship derived from laboratory data about the annoyance of individual noise intrusions. The latter estimates may in turn be applied to populations exposed to unducted fan engine noise over a range of assumed exposure levels. Application of these procedures to several assumed exposure cases suggests that millions of people in rural areas of the United States would be likely to be highly annoyed by the noise of aircraft powered by unducted fan engines. Keywords: Annoyance, Audibility, Noise exposure, Unducted fan engines. (SDW).
The Effect Of Onset Rate On Aircraft Noise Annoyance Volume 3 Hybrid Own Home Experiment
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Author :
language : en
Publisher:
Release Date : 1993
The Effect Of Onset Rate On Aircraft Noise Annoyance Volume 3 Hybrid Own Home Experiment written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
This report presents the results of the third in a proposed sequence of studies to investigate human annoyance to noise from low-altitude military training route (MTR) flight operations. The sequence ranges from laboratory studies, in which the physical and social parameters are well controlled, but highly artificial, to field attitudinal surveys, in which these parameter are largely uncontrolled, but the setting is natural. In this third study, subjects were exposed to both real and recorded MTR noise events in their own homes for a period of four weeks. In the laboratory study it was found that MTR sounds having onset rates faster than 30 dB/second caused annoyance beyond what would be expected from the corresponding sound exposure level (SEL). The best fit to the data was found to be an onset rate adjustment to SEL, which has the form of a linear relation on a dB versus log (rate) scale, from 0 dB at a rate of 30 dB/second to 11 dB at 150 dB/second. The rented home study confirmed the laboratory onset rate adjustment, although the adjustment was found to begin at 15 dB/second rather than at 30 dB/second. The present study continued to confirm the existence of an onset rate effect. it also confirmed the equal energy principle. However, it did not show any dependence of annoyance on the sporadicity of the events.
Audibility And Annoyance Of En Route Noise Of Unducted Fan Engines
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Author :
language : en
Publisher:
Release Date : 1990
Audibility And Annoyance Of En Route Noise Of Unducted Fan Engines written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Airplanes categories.
Effect Of Personal And Situational Variables On Noise Annoyance With Special Reference To Implications For En Route Noise Final Report
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Author : James M. Fields
language : en
Publisher:
Release Date : 1992
Effect Of Personal And Situational Variables On Noise Annoyance With Special Reference To Implications For En Route Noise Final Report written by James M. Fields and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Airplanes categories.
Effects Of Conversation Interference On Annoyance Due To Aircraft Noise
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Author : Kelli Francisco Key
language : en
Publisher:
Release Date : 1980
Effects Of Conversation Interference On Annoyance Due To Aircraft Noise written by Kelli Francisco Key and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Airplanes categories.
Faa Nasa En Route Noise Symposium
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Author :
language : en
Publisher:
Release Date : 1990
Faa Nasa En Route Noise Symposium written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.