@prefix rdf: . @prefix owl: . @prefix xsd: . @prefix rdfs: . a , , ; rdfs:isDefinedBy ; rdfs:label "Decibel"@en ; "A customary logarithmic measure most commonly used (in various ways) for measuring sound.Sound is measured on a logarithmic scale. Informally, if one sound is $1\\,bel$ (10 decibels) \"louder\" than another, this means the louder sound is 10 times louder than the fainter one. A difference of 20 decibels corresponds to an increase of 10 x 10 or 100 times in intensity. The beginning of the scale, 0 decibels, can be set in different ways, depending on exactly the aspect of sound being measured. For sound intensity (the power of the sound waves per unit of area) $0\\,decibel$ is equal to $1\\,picoWatts\\,per\\,Metre\\,Squared$. This corresponds approximately to the faintest sound that can be detected by a person who has good hearing. For sound pressure (the pressure exerted by the sound waves) 0 decibels equals $20\\,micropascals\\,RMS$, and for sound power $0\\,decibels$ sometimes equals $1\\,picoWatt$. In all cases, one decibel equals $\\approx\\,0.115129\\,neper$."^^ ; , , , , , , , ; "http://dbpedia.org/resource/Decibel"^^xsd:anyURI ; ; , , , ; "0112/2///62720#UAA409" ; "http://en.wikipedia.org/wiki/Decibel?oldid=495380648"^^xsd:anyURI ; "dB" ; "dB"^^ ; "2N" .