Percutaneous endoscopic gastrostomy (PEG): A surgical procedure for placing a feeding tube without having to perform an open laparotomy (operation on the abdomen). The aim of PEG is to feed those who cannot swallow. PEG may be done by a surgeon, gastroenterologist (GI specialist).
While the intensity of a sound is a very objective quantity that can be measured with sensitive instrumentation, the loudness of a sound is more of a subjective response that will vary with a number of factors.
How To Measure Sound Intensity. Sound intensity, which is commonly referred to as the sound pressure level, is measure in decibels. Sound intensity refers to the sound power per unit area, which is usually measured in watts. Measuring the sound pressure level of speakers in your listening room will help you make better placement decisions to achieve the best sound possible.