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Jmac · 08-21-2020, 08:15 AM

To reduce sound transmission, you need to mass load (which lowers the resonant frequency), absorb energy, and/or break up sound waves. I would imagine a thin layer of concrete between floors isn't going to make much of a difference.

08-21-2020, 08:15 AM	#16211
Jmac Willing to sell body for a few minutes on RS Join Date: Aug 2004 Location: Duncan, BC Posts: 10,128 Thanked 5,568 Times in 2,107 Posts Failed 231 Times in 90 Posts	To reduce sound transmission, you need to mass load (which lowers the resonant frequency), absorb energy, and/or break up sound waves. I would imagine a thin layer of concrete between floors isn't going to make much of a difference.