Effect of noise spectra and a listening task upon passenger annoyance in a helicopter interior noise environment
By: Sherman A. Clevenson and Jack D. Leatherwood
Contributors: Leatherwood, Jack D; United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
Series: NASA technical paper -- 1590
Publisher: National Aeronautics and Space Administration, Scientific and Technical Information Branch; For sale by the National Technical Information Service]
Published: 1979
Place of publication: Washington, D.C; [Springfield, Va
Language: eng
Number of pages: 23
Subjects: Helicopters; Airplanes -- Noise; Noise control
Notes: "December 1979"--Cover

Includes bibliographical references