Acoustic facilities for human factors research at NASA Langley Research Center: description and operational facilities
Harvey H. Hubbard, Clemans A. Powell, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Langley Research Center
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1981 - Technology & Engineering - 12 pages
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200-watt amplifiers actuator air handling unit Aircraft Noise Reduction aircraft noise synthesis Altec ambient noise level amplitudes are limited analog signal anechoic listening room ceiling continuous power rating control room dB(A designs and test digital-to-analog converter echo-free environment EFFECTS ROOM TEST environmental noise exterior effects room Figure floor Fourier transform frequency noise excitation given in references horizontal Hubbard and Clemans human factors research hydraulically powered Hz to 20 Langley Aircraft Noise Langley Research Center LAYOUT loudspeaker channels lounge narrow-band NASA Langley Research noise and noise-induced noise and vibration noise synthesis system noise-induced vibrations number of facilities observer position one-third-octave-band levels operating capabilities outer room panels passenger cabin passenger ride quality Performing Organization PRQA psychoacoustics reaction mass ride quality apparatus shakers simulate aircraft flyover speaker system subjects are exposed test area test room test subjects traffic noise stimuli types of noises usable frequency range vertical walls