FIG. 6.5.2 Grid plot of noise source and surrounding areas. Isopleths of noise levels are plotted.
is variable. Additional features are the abilities to add an octave-band filter set, to output for downloading information to a printer or personal computer, and to measure exceedance levels and SEL.
Simple SOUND LEVEL METER—A low cost alternative when a quick on-the-spot level check is all that is required. The meter should have a Max-hold feature allowing for accurate measurements of short-duration noises such as moving vehicles or impact noises.
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