Those are primarily dull thuds. Slabs don't really oscillate. And voices - another half of the problem. So considering also possible procedure to inject stuff inside slabs would be a challenge and CWatters scepticism I should go with carpets and false ceilings. Will keep in mind all details...
Thanks guys for your answers!
CWatters, 256bits,
There are services around building second ceilings. Just wanted to save height of the room. I'll pick heaviest from their options if I'll choose to use them.
Baluncore,
I like idea about sand. Is there a simple way to estimate the Q and...
So the substance to be put in spaces must be as heavy as possible (tar/flux, may be something more realistic?) and putty all cracks carefully.
Surely soft covering could help but I'm afraid giving carpets as present would cost me a lot :sorry:
Hello gentlemen!
So I have a situation. Concrete floor (ceiling actually) slabs like these
has many cylindrical spaces in it. And noisy neighbors on top! The slab receives shocks / impacts and human shouts.
First I found Tuned Mass Damper. It is good for continuous vibration but not for first...