decibel

db

"One tength of a bel, a logarithmic unit used to compare two levels of power." [1]

"Two powers P1 and P2 are said to be separated by an interval of n bels (or 10n decibels) when n=log10(P1/P2). The unit is dimensionless." [2]

参照

  1. Ewing AW. Arthropod Bioacoustics: Neurobiology and Behaviour. Ithaca, New York: Comstock; 1989.
  2. Broughton WB. Glossarial Index. Acoustic Behavior of Animals. Acoustic Behavior of Animals. Elsevier; 1963.
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