An instrument for measuring the level of sound pressure in DECIBELs. Such measurements are called sound level readings. See: SOUND LEVEL. Sound level meters usually ...

Given the nature of their network, the early telephone pioneers’ efforts at sound level metering were based on line losses over a “standard mile” of cable. Meters calibrated to this standard ...

Or jackhammer, or chain saw loud. That’s what the Globe discovered at several of the T’s most infamously noisy sections, with help from a sound level meter that measured the decibel output of ...

Historically, the A, B, and C weighting networks on a SOUND LEVEL METER were derived as the inverse of the 40, 70 and 100 dB Fletcher-Munson curves and used to determine SOUND LEVEL.