Need soundproofing advice. Anybody know any legit info? Maybe a company that does consultations.
Ricardo G. replied:
Take a look at this site. I am pretty sure it can be improved. On the floor I would use 1/2" rubber pads@16" OC remainder of floor: 1/2" hard foam as a first layer. 2" layer of coarse sand, and then your sound attenuation layers. http://www.asc-soundproof.com/iso-diagrams.htm