LEADER 02265cam a2200433Ka 4500001    9947220153506421
005    20221219140705.0
008    930405s1990    cau     b    f000 0 eng d
035    (NjP)4722015-princetondb
035    (OCoLC)ocm27861129
035     |z(NjP)Voyager4722015
040    GP1 |beng |cGP1 |dGPO |dMvI
049    DOCS
074    0830-H-14 (MF)
074    0830-H-14 (online)
086 0  NAS 1.26:177564
100 1  Chan, Jeffrey W.
245 10 Comparison of speech intelligibility in cockpit noise using SPH-4 flight helmet with and without active noise reduction |h[microform] / |cJeffrey W. Chan and Carol A. Simpson.
260    Menlo Park, Calif. : |bDEV AIR Technical Associates ;Moffett Field, Calif. : |bNational Aeronautics and Space Administration, Ames Research Center ;[Springfield, Va. : |bFor sale by the National Technical Information Service, |c1990]
300    1 v.
490 1  NASA contractor report ; |v177564
490 1  USAAVSCOM technical report ; |v90-G-1
500    Distributed to depository libraries in microfiche.
530    Also available via Internet from the NASA Technical Report Server web site. Address as of 4/24/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900019194%5F1990019194.pdf ; current access is available via PURL.
533    Microfiche. |b[Washington, D.C. : |cNational Aeronautics and Space Administration, |d1990]. |e1 microfiche.
650  0 Airplanes |xCockpits |xNoise.
650  0 Speech, Intelligibility of. |0http://id.loc.gov/authorities/subjects/sh85126440
650  7 Aircraft noise. |2nasat |0http://id.loc.gov/authorities/subjects/sh85002867
650  7 Intelligibility. |2nasat
650  7 Noise reduction. |2nasat
650  7 Singal to noise ratios. |2nasat
650  7 Voice communication. |2nasat
700 1  Simpson, Carol A. |0http://id.loc.gov/authorities/names/n81021113
710 2  Ames Research Center. |0http://id.loc.gov/authorities/names/n79138699
830  0 NASA contractor report ; |vNASA CR-177564.
830  0 AVSCOM technical report ; |v90-G-1.
945    DOCS |cNAS 1.26:177564