📈 Definition: Decibel (dB)
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The loudness of sound is measured in the unit decibel (dB).
- It is a logarithmic unit, which describes the ratio between two sound intensities.
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Even small changes in the decibel range are clearly perceived by the human ear.
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For example: Normal conversation is about 60 dB, street traffic about 80 dB, and a jackhammer up to 120 dB.
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⚙ dezibel