00927cam a2200313 4500 4877 4877 4541994 OSt 20191223121424.0 690627s1968 dcua b 000 0 eng DLC DLC DLC TL521.3.C6 A3 no. 1117 620.23 PEA H Pearsons, Karl S. Measurement of speech levels in thepresence of time varying background noise, by Karl S. Pearsons,and Richard D. Horonjeff [1982] iii, 89 p. illus. 27 cm. 3.00 NASA contractor report, NASA CR-3547 Bibliography: p. 16. Noise Measurement. Horonjeff, Richard D., joint author. NASA contractor report ; NASA CR-3547. 7 cbc orignew u ncip 19 y-gencatlg ddc STS 0 0 ddc 0 0 95/1 AIISH AIISH 2019-12-23 0 620.23 PEA H 7943 2019-12-23 00:00:00 2019-12-23 STS