Simulated Indoor Sonic Booms Judged Relative to Noise from Subsonic Aircraft |
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5000 lbs Thrust abscissa acceptability accordance added aircraft flyover noise average background basis boom ref BOOM SIGNATURE calculated circle compared comparison conducted DATE Diff difference doors duration effect EPNdB EPNL units equally noisy expected feel figure four frequencies Give given Group heard indoors hypothesis impulse correction INDOOR SONIC BOOMS Intensity JUDGED EQUAL judged noisiness judged relative judgment Kryter Landing level of aircraft listeners outdoors loudness Max PNdB Max PNL maximum means minutes msec necessary noise from subsonic non-impulsive Number occur pair peak overpressure perceived noisiness Performing Organization physical measures physical units possible predict present study procedure proposed psychological recorded refers Report response rise secs Selected sequence session shown SIMULATED INDOOR SONIC simulated sonic boom spectra startle stimuli subjects subsonic aircraft flyover subsonic aircraft noise subsonic jet aircraft test room typical usually values varied various