Sound energy flux

From Biocrawler, the free encyclopedia.

The sound energy flux is the average rate of flow of sound energy for one period through any specified area.

In a medium of density ρ for a plane or spherical free wave having a velocity of propagation v, the sound energy flux through the area S corresponding to an effective sound pressure p is

J = ( p²S / ρv ) cos θ

where θ = the angle between the direction of propagation of the sound and the normal to the area S.

Sound measurements

• Sound power
• Sound power level (SWL)
• Sound pressure
• Sound pressure level (SPL)
• Sound intensity
• Sound intensity level (SIL)
• Particle velocity
• Particle velocity level (sometimes called Sound velocity level) (SVL)
• Sound energy flux
• Acoustic impedance
• Speed of sound

Wikipedia (http://en.wikipedia.org/wiki/Main_Page) Sound_energy_flux (http://en.wikipedia.org/wiki/Sound_energy_flux) version history (http://en.wikipedia.org/w/index.php?title=Sound_energy_flux&action=history) GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License) CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)

---