| Popis: |
A standard method for field measurement of in‐situ noise lacked precision and accuracy information. A relatively straightforward round robin test organizes to provide data brought to light several problems and considerations. The initial test objective was to select experienced participants, hand them the written standard measurement procedure and collate the results. Problems arose in noise source and background noise variation, procedure interpretation among participants, instrumentation usage, and in the procedure itself. After a retest the standard deviation among participants was 0.7 dB for A‐weighted and 1.8–4.1 dB for individual octave bands. Considerations and lessons learned will be discussed including instrumentation (one set for all participants or separate sets), noise source monitoring for uniformity, reported statistical quantity, approaches for adjustments to variables held constant, data recording, and logistics. [The opinions or assertions contained herein are the views of the author and are not to be construed as official or as reflecting the views of the Department of the Army or the Department of Defense.] |
