![]() While the word ' sound' refers to vibrations of all frequencies (audible or otherwise, similar to the word 'light' which represents visible radiations as well as invisible infrared and ultra-violet radiations), acoustics is reserved for the aspects connected with hearing. ![]() Acoustics is defined as the science of sound and phenomenon of hearing. The physics is mainly concerned with the stimulus which is the phenomena occuring external to the ear. We may regard sound either a sensation or the stimulus which produces the sensation. ![]() Aero-Acoustics, noise estimation and noise reduction strategies CAA: Computational Aero-AcousticsĬAA can be explanded into Computer Aided Acoustics (similar to CAD and CAE) or Computational Aero-Acoustics - both mean same.
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