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The SI unit of loudness is the decibel (dB), which is a logarithmic unit that quantifies sound levels relative to a reference level. Loudness itself, as perceived by the human ear, is not measured directly in SI units but is often represented in terms of decibels. In acoustics, sound pressure level (SPL) is also commonly used to express sound intensity in decibels, with a reference level typically set at 20 micropascals.

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Related Questions

What is the unit of loudness called?

The unit of loudness is called decibel (dB).


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Decibel is a measurement of loudness.


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Decibel is a measurement of loudness.


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The unit of loudness N is "the sone" and the unit of loudness level (volume) LN is "the phon". Scroll down to related links and look at "Conversion of sone to phon".


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The most common unit of sound loudness is the decibel (dB).


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The unit for loudness is the decibel (dB). It is a logarithmic unit used to measure the intensity of sound.


Is decibel a unit of loudness?

Decibels are a unit used to measure the intensity or power level of a sound. While it is commonly associated with loudness, decibels specifically quantify the level of sound pressure.


What is the unit of perceived loudness equal to 40 phons?

Units used to measure loudness are Sone (loudness N) and Phon (loudness level L). 40 Phons = 1 Sone. Scroll down to related links and look at "Loudness - Wikipedia" and "Sound level change and the change of the respective factor of volume and loudness"


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The unit of sound loudness is the decibel (dB). It is a logarithmic scale that measures the intensity or volume of sound.


What is a unit to compare loudness?

The unit commonly used to compare loudness is the decibel (dB). The decibel scale is a logarithmic scale that measures the intensity of sound. It helps quantify the difference in loudness between sounds.


What is the unit for volume or loudness?

The decibel.


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decibel