Accession Number : AD0666207

Title :   NOISE ATTENUATING MATERIALS IN AN S-141/G SHELTER.

Descriptive Note : Technical note,

Corporate Author : HUMAN ENGINEERING LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Holland,Howard H. , Jr

Report Date : JAN 1968

Pagination or Media Count : 22

Abstract : Noise measurements were taken inside an S-141/G shelter with varying amounts of acoustical material applied to all surfaces except the floor. A typical ventilating blower was used as a noise source and two acoustical materials were used, a half-inch material and a one-inch material. Results are presented in speech interference levels (SIL) versus amount of acoustical material installed. (Author)

Descriptors :   (*HUMAN FACTORS ENGINEERING, SHELTERS), (*SHELTERS, *ACOUSTIC INSULATION), NOISE, ATTENUATION, SPEECH, INTELLIGIBILITY, INTERFERENCE, BLOWERS, MICROPHONES, VENTILATION FANS

Subject Categories : Structural Engineering and Building Technology
      Acoustics
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE