Скачать или смотреть Introduction to Sound

This video explains the basic introduction to sound. Also, it deals with the different classifications, characteristics of Sound.

Sound or Acoustic Energy is a form of energy and is produced by the vibration of a body. You cannot hear sound in a vacuum, because it requires a material medium for its propagation and it can be transmitted through solids, liquids, and gases.

00:00 Definition of Sound & its hearing change.
00:38 How sound transmission is done in the olden days?
01:00 Properties of Sound
01:10 Classifications of Sound
01:33 Characteristics of Sound
02:10 Propagation of Sound Wave Formula
02:42 Decibel - Physiological Quantity of Sound

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