Several methods for adjusting EPNL to account for its underestimate of judged annoyance are applied to eight helicopter flyover noise signatures having various degrees of blade slap. A proposal for an impulsive noise correlation procedure based on a digital analysis of the flyover signal is investigated. When all data are combined, the proposal is little better than simply adding an arbitrary fixed adjustment of 3 decibels to EPNL.
Subjective evaluation of helicopter blade slap noise
1978-08-01
Conference paper
No indication
English
A subjective field study of helicopter blade-slap noise
NTRS | 1978
|A Subjective Field Study of Helicopter Blade-Slap Noise
NTIS | 1978
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