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Sound::sound    Waves::pressure    Medium::speed    Through::right    Level::velocity    Title::water

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A drum produces sound via a vibrating membrane.

In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain.<ref>{{#invoke:citation/CS1|citation |CitationClass=book }}</ref>


Sound sections
Intro  Acoustics  Definition  Physics of sound  Perception of sound  Sound pressure level  See also  References  External links  

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