I am not sure whether this is famous practice or not in Malaysia.

But in China, where people mostly stays in condo in big cities.
They got this "shake floor machine" whenever upstairs is too noisy, just turn it on and let the vibration kicks in through the wall and annoy them.

Look for 镇楼器 in taobao

I don't get you guys

why do plaster ceiling?

Just make your unit feel a bit compress.

look nice only but who is gonna go in see your bed room? if you do for all rooms.

yeah

sometime when you end up with a stupid neighbor above, really makes one feel like the condo is something one only want to live there temporary.

next time I must buy top floor unit.

or save up enough money to buy a single storey house in PJ and renovate it.

If you had the budget, you can put acoustic dampening material within the plaster ceiling also.

I have done this as sound proofing for my office at home.

Well. It will help. It won't be 100% unless you willing to spend some real moolah.

Or heck, just get landed properly with land at the sides. Silence.

Until some neighbour's kid who has zero musical aptitude try his hand at the piano, or even worst, fucking drums.

Lord have mercy on thy soul..

Lmao. Fucked either way T_T