Greetings,
We are embarking in a construction project, where me and my wife will build a private house with some professional parts.
We are both pianists (hence a rehearsal room) and I have a small mobile recording company.
The big studio would be below ground level, the small studio would be ground level , next to the piano room, but separated by a corridor of 1.5m. For now let's assume all outside walls and floors are 25 cm concrete, inner walls 15cm and inner floors 20cm concrete + additional layer of concrete/wood/insulation whatever...
(Cross section below)
Some important points :
1. piano is not VERY isolated from the house (ground floor) - by the layout of the house and because we don't feel it to be necessary. However, if we can get adequate isolation to the upper level (bedrooms) that would be great. I was thinking hanging a ceiling under the concrete floor and decoupling the concrete upper floor from the side walls (during construction !), reducing flanking noise upstairs. This way I wouldn't make the available space smaller by adding walls.
2. the small studio : it is not critical to get great isolation, but I would want to build a box in a box anyway, because in the latest plan it is built above the big studio, so the concrete floor is suspended in air - in a previous plan it was laying in the ground, so it would resonate less.
Q: do I put in a floating floor ? Or will this create a triple leaf with :
3. The big studio underground. Should be able to be used 24/24. People/children will have to sleep 2 stories up.
I assume flanking noise through the floor and up will be no problem !
I intend to put inner walls&ceiling, decoupled from the outer structure to minimise flanking noise through the walls.
Should I make a box with ceiling, or resilient walls and ceiling ?
Does anyone have some brilliant insight ?
Where could be the weak link, which ceiling/wall should I take most care of ?
If there is a triple leaf effect between the two studios, which is more important : the floating floor in the upper studio or the decoupled ceiling or box-in-a-box in the lower studio ?
Your advice is appreciated - who knows, maybe I'll need someone to consult me on the acoustics ...