What good for proof sound

  1. what is good for proof sound

    massive block or open block. ..and why
    Last edited: Sep 1, 2014
  2. jcsd
  3. A.T.

    A.T. 6,462
    Science Advisor
    Gold Member

    You mean what bricks are better for a soundproof wall, hollow or solid?
  4. Yes. .........
  5. Two walls (with mass) separated by an air gap is probably better than either.
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