abstract:Sound energy flux (the energy produced by an object's vibrations, symbolized as q) results from the integral of the acoustic pressure p times the particle velocity v over a surface A , and is given by the integral below.Landau & Lifshitz, "Fluid Mechanics", Course of Theoretical Physics, Vol.
In chapter two, wave motionequation, sound energy, sound energy fluxdensity, soundintensityand its scaling methodand the theorem of two-microphonesound intensity have been introduced.