National Aeronautics and Space Administration (NASA). This Technical Standard approved by NASA June 21, 1996. 24 p. The term vibroacoustics is defined as an environment induced by highintensity acoustic noise associated with various segments of the flight profile. It manifests itself throughout the payload in the form of transmitted acoustic excitation and as structureborne random vibration. Therefore, the standard is to specifically address the acoustic and random vibration environments and test levels