We have a ranch (single-story) house with hardwood floors on most of the ground level. The basement below this level is finished, and is where I work out of at home. We have kids that like to run everywhere, so there is considerable noise transmitted from these floors down to the basement.
What are the best ways to accomplish noise reduction? The basement is completely open (or at least accessible in all places) to the subfloor above, no tight quarters, etc. In the finished area of the basement, the ceiling is typical drop-in tiles. These can be easily removed for work. No part of the floor above is inaccessible. Likewise, the floor itself could be replaced if there was a higher standard to be built against (see comment w/r/t luxury apartments).
Budget is not a primary concern here, finding an effective solution is most important.
As I see it, there are basically three kinds of noise happening:
- "Contact" noise, i.e. the sound of feet, shoes, dropped toys, etc. hitting the floor itself.
- Squeaking/creaking etc. from loose boards, or subfloor.
- A booming sound or vibration which I assume is either occurring between the (mostly insulated) joists below, or possibly between the hardwood and subfloor.
Sound #3 above is the most annoying. What's the best way(s) to resolve this?
- Some sort of insulation between the floor joists? (e.g. this type of acoustic insulation, or just regular blown-in insulation)
- Cork, mass-loaded vinyl sheets or other product between the hardwood floors (yes, I realize the current floor would have to replaced) and the subfloor.
- A floating subfloor or other more sophisticated construction?
- Combo of above?
- Something else?