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Graphical Data
| NOTE: The decibel (dB A) scale is logarithmic, and
therefore a difference of 10 decibels corresponds to a difference in
sound pressure of a factor of 10. The human ear and brain,
however, percieve this as being twice as loud; hence 69 dB A sounds
twice as loud as 59 dB A and 99 dB A is 16 times as loud as 59 dB
A. |
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