Nicole Kidman and Keith Urban have a new baby, courtesy of a surrogate ... TMZ has learned. Sources tell us ... the baby was born at Centennial Medical Center in Nashville on December 28, 2010.
Quick Answer. When talking about dishwashers, decibels refers to the noise level a dishwasher produces when it is in operation. The quietest dishwashers have decibel ratings around 40 and slightly below, while the noise level in decibels of a normal conversation is about 60.
These are electronic filters within the the instrument that are used to adjust the way in which the instrument measures the noise. The most commonly used Frequency Weightings that you will see on a modern sound level meter or noise dosimeter are âAâ, âCâ and âZâ and below is a brief explanation of each of these.