A query to the selected Sound object.
the energy. If the unit of sound amplitude is Pa (Pascal), the unit of energy will be Pa2·s.
The energy is defined as
|∫t1t2 x2(t) dt|
where x(t) is the amplitude of the sound. For stereo sounds, it is
|∫t1t2 (x12(t) + x22(t))/2 dt|
where x1(t) and x2(t) are the two channels; this definition ensures that if you convert a mono sound to a stereo sound, the energy will stay the same.
For an interpretation of the energy as the sound energy in air, see Sound: Get energy in air. For the power, see Sound: Get power....
© ppgb, January 29, 2007