Accuracy Most sound level meters are reasonably accurate; even budget models have an accuracy that falls within a range of +/-1.5 decibels. Unless you’re using a sound level meter for legal ...

A sound level calibrator is a device that slips over your sound level meter and emits a tone that’s extremely accurate in level and frequency. You use it to check the accuracy of your sound ...

A sound level meter will usually have fast and slow response modes indicating its sensitivity to rapid fluctuations and peak values of sound pressure. For a discussion of the measurement of peak and ...

The Sound Level Meter, however, does not take into account the predominant frequency region of the noise, or other factors which may cause annoyance. Compare: Community Noise Equivalent Level, ...