Accession Number:

ADA043435

Title:

Subjective Ratings of Annoyance Produced by Rotary-Wing Aircraft Noise

Descriptive Note:

Corporate Author:

ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL

Report Date:

1977-05-01

Pagination or Media Count:

39.0

Abstract:

Subjective ratings of annoyance caused by helicopter noise relative to that caused by fixed-wing aircraft were obtained. Comparison of the subjective ratings with various physical predictors of annoyance indicated that the integrated A-weighted level dBA predicted as well as any of the predictors with the D2-weighted level and EPNL almost equivalent. The B-weighted level and C-weighted level did not predict as well. No correction factor for the impulsive character blade slap of the helicopter noise was required. No substantial penalty for helicopters compared to fixed-wing aircraft noise was required. Author

Subject Categories:

  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE