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 ...

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 ...

Cappetto said that in the case of reporting someone for having noisy wind chimes, there might be little that officers can do ...

0002 dynes/cm 2. SPL may be measured with a SOUND LEVEL METER weighted according to a specific frequency response pattern and termed SOUND LEVEL. The electroacoustic equivalent to SPL is measured with ...