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Hiaz.SpatialAcousticsr1.1 - 05 Jul 2005 - 13:17 - TWikiGuesttopic end

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Spatial Acoustics

Acoustics is a branch of physics and is study of sound, mechanical waves in gases, liquids, and solids. A scientist who works in the field of acoustics is an acoustician. The application of acoustics in technology is called acoustical engineering. There is often much overlap and interaction between the interests of acousticians and acoustical engineers.

Room acoustics describes how sound behaves in an enclosed space. The way that sound behaves in a room can be broken up into roughly four different frequency zones.

  1. The first zone is below the frequency that has a wavelength of twice the longest length of the room. In this zone sound behaves very much like changes in static air pressure.
  2. Above that zone, until the frequency is approximately 11,250(RT60/V)1/2, wavelengths are comparable to the dimensions of the room, and so room resonances dominate.
  3. The third region which extends approximately 2 octaves is a transition to the fourth zone.
  4. In the fourth zone, sounds behave like rays of light bouncing around the room

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-- HiazHhzz - 10 Nov 2004
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