Page 19 "Acoustical Enclosures"The general principle in the design of the acoustical enclosures. • The distance of the machinery and the enclosure must be greater than the wavelength (lowest frequency).• The material to make the enclosure must be suitable to the working conditions in that place.• Air gap or Leaks of the enclosure must not be there anyway.• The enclosure wall panelling materials Sound-absorption must have the appropriate, i.e., TL.
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