Sound Level MetersSound Level Meters range from the simple analog (needle) dB meter to sophisticated real time third octave analyzers with data logging and Type I microphones. Uses include sound / noise surveys in industrial settings, community noise monitoring ranging from noisy neighbors to aircraft operations, car audio competitions, armament testing and live-fire military training. Frequency analysis is often used to identify noise sources as well as for acoustical tuning of performance halls. Good practice when using sound level meters calls for calibrating the measuring instrument before a series of measurements and checking that calibration has been maintained during measurements by checking the calibration after the measurements using an acoustical calibrator. The before and after calibration readings are considered a part of the data set. Casella Sound Level Meters (Professional ANSI Type I and Type II)
Sper (primarily Type
II)
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