Simon Fraser University6y
SOUND LEVEL METER
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 ...
Simon Fraser University6y
SOUND PRESSURE LEVEL (SPL)
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 ...
The Boston Globe12d
Here’s where we found perhaps the screechiest MBTA train. It was ear-splitting.
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 ...