Audio isolation of room used for movies, music, partys

[goblinsly]

I moved to new place.I will be in room 5m x 5m.I listen to lots of music, watch movies on 5.1 system and on top of all, i play the piano (the big one).I dont want to be pain in the ass to my neighbours (which happen to be owners of house, soo its is very importaint that they dont get any loud sounds from my floor.
Their home is under mine (we are 3, they are 2).Soo for now my main concern is to put some isolation on floor, i will isolate walls when i get more money.
What i wanted to do is.Remove Parquet, put 10 cm mineral or rock wool (since i dont have a job yet, its importaint that price is low, and rock wool is very cheap) and then put parquet over it.
Also i will put woofer on 1 m x m mineral wool, soo it will extra help to absorb sound.
Now, as you already can see, i am not making studio like most of you, i just want to live and let live.I like music at higher volume, i like to watch good movie at higher volume (i have genius 5.1 speakers, its no hi-fi, but can get pretty loud) with high basses from woofer, and most of all, i like to play piano, since its with me from my 3 year.
Since i know nothing about sound isolation i am turning on you expert guys, i am in great need of help, money is problem, but i think it will be worth.And again, its very importaint that this will work, because this neighbours under me are owners of house, and last thing i want is problems with them, might aswell kick me out.
ps: the floor i think are made of wood, but walls are made from bricks.
While waiting for your help i send you tnx in advance and say hi to you all Goblin

[goblinsly]

I have pained my room, picture is bad, but i deserve some credit too, i did it in painter!
This is how my room should look like in the end, but first i will empty it completely soo i can install isolation.

[goblinsly]

My main concern is to isolate floor, because my neighbours have bedroom under my room, and if they will hear noices in the middle of night, i will be in big trouble.Room ceiling is 3.5 m high, soo i can put 0.5m of isolation on floor, just as long as it works and can pay for it.

The wall side where Door 1 and Door 2 is, doesnt need good isolation, because beyond this 2 walls we have other rooms of our apartment.Only Wall side where my bed is, well beyond there are neighbours.Soo it should be well isolated aswel.

Again, tnx in advance. Goblinsly

[z60611]

to put some isolation on floor, i will isolate walls when i get more money.

Sound will travel around things, even if they are somewhat solid. It's called 'flanking noise'.
Think of an aquarium -- any small leak and there's water all over the floor.

To 'float a floor' one must have
a) structure that can take a lot of weight -- do you have this?
b) calculations to get a resonance lower than 10hz -- otherwise what the floor does is amplify some frequency in the neighbours space. i.e. the typical floating floor consists of a concrete slab on top of several elastimer blocks or springs, and like any other mass on the end of a spring it'll bounce at some resonance frequency.

If you and your neighbour share HVAC, then that will have to be delt with too.

[goblinsly]

I really, as said am not expert, i dont know anything about all this calculations.Floor, as far as i can tell are made of wood.If it can take huge piano, i think it can hold enough weight, dont u think ?

[sharward]

If it can take huge piano, i think it can hold enough weight, dont u think ?

Pianos weigh 400 lbs to 1200 pounds (181 to 544 kilograms) or more. That's fairly heavy, but floating floors can weigh thousands of pounds.

Floors are engineered to handle a certain amount of dynamic weight -- people, furniture, etc. This is called "live load." If you exceed the amount of weight for which the floor was engineered, it can (at best) damage the ceiling below it or (at worst) cause a catastrophic collapse, causing major damage and injuring or killing people.

Soundproofing is heavy. In order to know what kind and how much soundproofing to recommend, it is critical to know about the details of your existing construction. Saying that the floor is "wood" is extremely vague. In order for us to make more specific recommendations, we need detailed information about your existing construction -- consider how much detail would be necessary for someone to literally build a copy of your floor, because that is what we need. Spend some time reviewing other threads here, and you'll see the kind of anatomic details that are required.

[goblinsly]

Where can i get this details about the house ? I am 18 and i havent been in situation like this yet.

[sharward]

Most people remove a floor board or cut a hole large enough to identify the materials and take measurements. Others can tell from exposed areas, such as an unfinished basement or garage.

You may have to live with keeping the volume down, or moving to a place that gives you more freedom.

[z60611]

The loudest noise the neighbours will hear is low frequency noise.
Auralex Bothering Your Neighbours wma files
Auralex Move/Deal/Headphones chat

So you can:
a) use headphones
b) use seat transducers instead of a subwoofer (perhaps with Butt Kickers)
c) decouple your subwoofers from the floor (perhaps with ASC Sub Trap, or a Paul Woodlock speaker decoupler, or a riser)
d) decouple your piano from the floor (perhaps with Auralex Platfoam )

[Dan Fitzpatrick]

the "bothering the neighbors" link is great ... that should be in the FAQ! assuming it's accurate of course. good stuff.