Archive for July 2017

A Sound Level Calibrator is used to produce a known sound pressure level. It is a hand-held device that emits an audible tone of very accurate level and frequency. Typically the calibrator is fitted over the meter’s microphone and the reading is either checked manually by the user or automatically by the meter. Calibration at…

Sound Power is the ability of a device to make sound. It is purely a function of the device and unable to be measured directly. It has units of watts, and in decibel terms, dB re: 1pW. The sound power is radiated into the acoustic field by sound intensity, a vector quantity, which is the…