A sound level meter or sound meter is an instrument which measures sound pressure level, commonly used in noise pollution studies for the quantification of different kinds of noise, especially for industrial, environmental and aircraft noise. However, the reading from a sound level meter does not correlate well to human-perceived loudness, which is better measured by a loudness meter. The current international standard that specifies sound level meter functionality and performance is the IEC 61672:2003.
Famous quotes containing the words sound, level and/or meter:
“One of those sound slumbers which, lasting in reality some half hour, seem to the sleeper to have been protracted for three weeks or a month.”
—Charles Dickens (1812–1870)
“Let still the woman take
An elder than herself. So wears she to him;
So sways she level in her husband’s heart.”
—William Shakespeare (1564–1616)
“His meter was bitter, and ironic and spectacular and inviting: so was life. There wasn’t much other life during those times than to what his pen paid the tribute of poetic tragic glamour and offered the reconciliation of the familiarities of tragedy.”
—Zelda Fitzgerald (1900–1948)