The sound energy flux is the average rate of flow of sound energy for one period through any specified area A and is usually referred to as acoustic intensity. where θ = the angle between the direction of propagation of the sound and the normal to the area A. This is the parameter one would be interested in when converting noise back into usable ...
Found on
http://en.wikipedia.org/wiki/Sound_energy_flux
time average product of the in-phase components of the instantaneous sound pressure and the volume velocity through the surface element considered
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=801-21-37
No exact match found.
