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Introduction to soundproofing

An introduction to the principles of soundproofing.


Having looking briefly at the materials, we can now consider the three requirements for good soundproofing:

  • Mass
  • Continuity of structure
  • No defects

Mass means what it says. Double the mass of a partition and you get 6 dB more insulation.

Continuity of structure not only means non-porosity, it means that the soundproofing should enclose the room in question absolutely 100%.

If there is any place where sound can get through, it will.

You could spend a lot of money and see it wasted because of 'acoustic holes' in the structure.

'No defects' really means the same as continuity of structure. Except that it is one thing to design a room with no acoustic holes, quite another thing to see it through to completion successfully.

Builders do not always comply with architects' plans 100%, and the shortcuts they take could well compromised soundproofing considerably.

By David Mellor Tuesday February 1, 2000
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