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    5. what is db sound
    what is db sound

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    0  Views: 475 Answers: 1 Posted: 13 years ago
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      dB, decibel :  is a unit that indicates the ratio of physical quantity, relative to a specifed or imlied reference level. A ratio in decibles in ten times the logarithm to base ten of the ratio of two power quqntities. A decible is (one tenth)  of a bel, a seldom used unit.

      13 years ago. Rating: 1
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