Sound Level Meter
Device used to measure sound pressure level with a standardized frequency weighting and indicated exponential time weighting for measurements of sound pressure level, or without time weighting for measurement of time-average sound pressure level or sound exposure level.
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Sound level meters are commonly either Type 1, precision instruments, or Type 2, general purpose instruments.
Sound level meters can have weighting and filter networks to provide dB readings by octave band in the A, B, or C scales.
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