Sound quality of supersonic aircraft noise as heard indoors and its impact on annoyance
Abstract
Supersonic flight over inhabited territories of the United States has been banned by the Federal Aviation Association since 1973. While research has been conducted to determine the effects of sonic booms on the general population when heard outdoors, little work has been done on people's perception of sonic booms as heard indoors. A technique to simulate indoor sounds from an outdoor sound has been developed. Using this, subjective tests have been done to determine the best way to use this simulation (i.e. whether diotic or dichotic sounds should be used) and to determine which indoor room characteristics, if any, have an effect on the population's perception of annoyance when hearing sonic booms indoors. Two annoyance models based on sound metrics proposed by Marshall and Davies have also been explored, and it was observed that while these two models were proposed for outdoor sounds, they are also quite accurate in predicting annoyance to sonic booms when heard indoors.
Degree
M.S.E.
Advisors
Davies, Purdue University.
Subject Area
Aerospace engineering|Acoustics
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