The Effect of Onset Rate on Aircraft Noise Annoyance. Volume 2. Rented Home Experiment
Abstract
This report presents the results of the second 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 parameters are largely uncontrolled, but the setting is natural. In this second study, participants were exposed to recordings of MTR noise events in a rented home, in which the social setting and presentation of sound stimuli were more normal than in the previous laboratory experiments. 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 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. In addition to re-examining the onset rate adjustment, the study also addressed the effect of the infrequency of occurrence and the irregularity of the stimuli on human reactions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1992
- Accession Number
- ADA279783
Entities
People
- Eric Stusnick
- Gwendolyn Demiranda
- John A. Molino
- Kevin A. Bradley