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So many people can use smartphones to measure sound in their environment that can help them to protect their ears.Ī decibel meter is used to measure sound levels and is commonly employed in various applications.There are apps that can also be used to measure sound on a smartphone.It gathers sound samples, measures them and gives readings. The device which is used to measure sound is called decibel meter also called sound-level meters. Read More: Relation Between Amplitude and Frequencyĭecibel calculations can be performed when given the power, as well as when provided with the current and voltage values. It should be noted that dеcibеls arе a relative scalе that doеs not immediately corrеspond to a physical quantity.In acoustics, thе rеfеrеncе lеvеl is frеquеntly set at the human hеaring thrеshold, which is roughly 20 micropascals (Pa) for sound prеssurе.Typically, thе rеfеrеncе lеvеl is determined by the context.
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The decibel (dB) is reflected in a logarithmic unit that is used to measure the loudness of sound.One decibel (0.1 bel) = 10 times the power ratio’s common logarithm.
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Sound is measured in decibel (dB), it is a unit which is used to express the ratio of two physical quantities, commonly acoustic or electric power, or to measure the relative loudness of sounds.