Evaluating the Degree of Annoyance Caused by Military Noise

Of noises created by Army testing and training, settings. The sound of a vehicle passing, measured' impulsive noises are the most difficult to assess. near a subject's ears, differs in annoyance from an General community noise is currently assessed using equivalent computer-generated pink-noise sound by 10 A-frequency weighting and "energy equivalent " level. db or more. Compared to real, tracked vehicles, small Adjustments or "penalties " are sometimes added to arms also seem to fit an equal energy model and impulsive sound to account for the greater annoyance require penalties on the order of zero and 80 dB, of that sound type. This pair-comparison study's respectively. Blast noise doAs not appear to fit an equal objective was to: (1) further define and develop energy model. A 1-dB increase in blast C-weighted "penalties " to help assess military noise and (2) sound exposure level (CSEL) is equivalent to a 2-dB investigate community response to blast noise by increase in the sound level of noncommon sound focusing on blasts, small arms, and tracked vehicles sources such as vehicles. noises. Results showed that real sounds in real settings yield results different from artificial sounds in laboratory,rý? 94-26715 MC QUA = ISCM Approved fr public mleme dibton is unlimiled 9 4 8 2 2 0 8 5 The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. The findings of this report are not to be construed as an official Department of the Army position, unless so designated by other authorized documents