Difference between revisions of "Decibel"
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CPWebmaster (talk | contribs) (New page: The unit of sound pressure used to measure noise. Decibel means 1/10 of a Bell, after Alexander Graham Bell (thus the capital B). Because decibels are such a small measure, they ar...) |
Jazzman831 (talk | contribs) m (gaaaaaaaaah) |
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| − | The unit of sound pressure used to measure [[noise]]. Decibel means 1/10 of a Bell, after [[Alexander Graham Bell]] | + | The '''decibel''' is the unit of sound pressure used to measure [[noise]]. Decibel means 1/10 of a Bell, after [[Alexander Graham Bell]] Because decibels are such a small measure, they are computed logarithmically and cannot be added arithmetically. An increase of ten dB is perceived by human ears as a doubling of noise. |
Revision as of 04:37, July 13, 2007
The decibel is the unit of sound pressure used to measure noise. Decibel means 1/10 of a Bell, after Alexander Graham Bell Because decibels are such a small measure, they are computed logarithmically and cannot be added arithmetically. An increase of ten dB is perceived by human ears as a doubling of noise.