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Decibels measure a ratio of two values of the same unit.

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A decibel is measure of loudness of sound although it can be applied to other applications. The base unit is the bel and a tenth of that the decibel. In the real world a decibel of sound is about the weakest sound a person can hear - as an example the rubbing of your finger and thumb together at arms length.

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13y ago
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12y ago

A decibel usually measures power or intensity. Most common application are in Audio levels. A decibel(dB) is actually a ratio of the measured physical quantity to a standard reference value of the same physical quantity. It is expressed in logarithmic scale. As we have in decigram, decimeter similarly a decibel(dB) is also one tenth of a Bel. A 1 Bel (10 dB or decibel) change represents multiplying the intensity or power level by a factor of ten.

It becomes easier to express things in decibel as they are short numbers compared to the real physical measure.

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Q: What does a decibel measure?
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Related questions

What is a decibel in terms of sound?

A decibel is a measure for sound.


How is 60hz in decibel?

Hz is a measure of frequency. Decibel is a measure of loudness/volume/amplitude. The two can not be equated.


What is the unit of measure for loudness?

Decibels are the measure of how loud something is.


A decibel is a unit used to measure the?

decibels measure the intensity of sound.


What can be measured with a decibel meter?

A decibel meter is used to measure sound. It is a handheld device and can be used to quickly measure how loud certain sounds are. They are sometimes used to measure how loud a crowd is in sports.


How do you measure decibels at home?

use a decibel meter


Is used to measure the loudness of sound?

the decibel (dB)


What is the decibel level of an F4 Phantom?

It is beyond measure!


The decibel is only used to measure sound levels?

Yes.


What is a word that starts with d and is a unit of measure for loudness?

Decibel.


What is the name of the unit used to measure the intensity of a sound?

a decibel


What is a unit used to measure the intensity of sound called?

decibel