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:
“Letters are like wine; if they are sound they ripen with keeping. A man should lay down letters as he does a cellar of wine.”
—Samuel Butler (1835–1902)
“All’s oblique;
There’s nothing level in our cursed natures
But direct villainy. Therefore be abhorred
All feasts, societies, and throngs of men!”
—William Shakespeare (1564–1616)
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