Thanks, good information. Earlier, my post mentioned construction design to save on foam, and what I've done in the past is two framed walls with drywall only on one side each. It creates a dead space in between and is super effective. But I've never tripled it up, awesome.
In the US this method is part of the building code now when apartments share a wall. Interesting bit about the foam though thanks very much I'll keep in in mind. For my friends here in china we soundproof their doors with 8" foam and it is extremely effective. Great post thanks again.
Ps. Hey what would you do to combat hvac noise? Do you use like a break in the ductwork? Soft ducts. Or turn off the unit while you're recording?
Sorry to hear that, I have a similar issue at my house and unfortunately you're totally right about the glass. But windows are not excessively expensive and you could have a set installed on the inside, it would do a lot to kill that noise, my neighbor had it done and it works good depending on the location and design of the window area. The other thing you could do is buy enough sound booth foam to attach to your drapes and make them much more sound resistant. Or have a big foam cover made and just take it down when you wake up. Hope you find something to work. In the end I just purchased comfortable ear plugs and I wear them when things get noisy. :)
I understand. I kind of agree with hfcampo. There are too many unanswered questions. 700 yuan is a lot of money. if you've been somehow cheated on your water bill maliciously, I'd be surprised. Accidents happen things break and they might break again, which is why I think I might get a friend who speaks well and can argue your point nicely to the landlord. I wouldn't want the next situation and the next one to continue just coming out of your pocket.