The energy of the sound propagates as sequence of periodic waves through the air medium (compressible fluid) gets dissipated in vibrating the air molecules which causes density variation. So basically, the acoustic energy is dissipated by exciting the air molecules around.
The energy of the sound propagates as sequence of periodic waves through the air medium (compressible fluid) gets dissipated in vibrating the air molecules which causes density variation. So basically, the acoustic energy is dissipated by exciting the air molecules around.
More important than air absorption is the non-total reflection when sound energy hits obstacles. Some materials reflect even less than 10%: high sound absorption!
In a still, infinite atmosphere, sound energy will be "diluted" (spread over a larger surface) with increasing distance, until "drowned" in the Brownian motion. Air absorption will accelerate this process.
Energy of sound gets Scattered
• Specular reflector is a smooth boundary between media (conventional view of reflections)
• Acoustic scattering arises from objects that are size of wavelength or smaller
• Most organs have characteristic structure that gives rise to defined scatter - signature
http://courses.washington.edu/bioen508/Lecture6-US.pdf
Do perception mechanisms of receivers translate perceived energy produced by the vocal organ of a sender and transmitted through air or water into sound? Some people claim they hear sound/music or speech in the absence of a physical body producing sound/music. Does sound/music per se exist or is it not more than physical energy expressed in how moving air is perceived by the ear and translated into ‘sound/music’ by the perception mechanism?
It is exactly if you pour one litter of hot water in the ocean, will the ocean temperature increase? Of course no because the capacity of the ocean is much much higher than it of the one litter. The same happens when we release this small amount of sonic energy in the surroundings.
Hi I am quite in agreement with@Gamal Hashem. Yes it increase the waves and produce energy but they are so small in such a huge sea of such energies all around. Thanks
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Energy