"The whole strata community owes a huge debt of gratitude to you and the OCN executive. Much appreciated."
2.4.3 Decibels (dB)
The ear has the remarkable ability to handle an enormous range of sound levels. In order to express levels of sound meaningfully in numbers that are more manageable, a logarithmic scale is used, rather than a linear one. This scale is the decibel scale. Zero decibels (0 dB) is the quietest sound audible to a healthy human ear. From there, every increase of 3 dB represents a doubling of sound intensity, or acoustic power.
Sound pressure converted to the decibel scale is called sound pressure level (Lp).