Hi everybody,

I'm repairing a barn next to my home and want to obtain a good sound insulation.
What kind of materials would you advise me?

PS: There will be about 2kW of sound inside and neighbors close to the barn.

Fks

http://auralex.com has HUGE selection of sound insulation/reinforcement foam and other stuff.

I use their little speaker wedges. They works great

Thanks, I'll check this out

2kW of sound, probably 1.5kW or more of low-note (bass) sound. If your neighbors are close, concrete is one of the few things that will do the trick =)

Dura-rock can be applied to the walls (which helps alot). Also keep in mind that a single small gap or hole in your room can result in up to 25% of the sound that escapes.

Thank you very much

Maybe a double wall (with plain breeze blocks), between them foam panels. Plus inside the room foam on the walls

Any special trick for the doors?

This message has been edited. Last edited by: G r i b o u i l l e,

quote:

Any special trick for the doors

Solid core doors i.e. external / fire doors. Also be sure that you have proper weather seals around the edges. Another option of course is sliding doors which tend to seal better.

In my personal experience dense builders sound foam + durarock concrete backer board (both available at your local home improvement store) work wonderfully as a base layer for the walls. Additional foam in the corners, and in choice places also helps with the overall sound of the room.

The biggest problem again is the bass. The density of the wall has to match the wave length produced by the speakers to effectively block it.

If you're thinking double walls make sure that your walls and ceiling `float'. This goes a long way to reducing reverb both in the studio room and out side of the studio room. In addition you can provide a better sound profile. For this you should look for sound isolation `clips' for drywall mounting.

I don't know if I was able to soundproof completely as I can't resist having a door or a window open at least occasionally. Fortunately I have a studio in a relatively isolated area and have to think more on deadening the room then disturbing the neighbors.
I've seen here here some nice recommendations for that but as for your problem it might suggest double windows in addition to double walls.

Build a room within a room, dead space between the two, each "room" with insulated walls! This, of course, is expensive and quite overkill for most people.

If you're putting up special sound treatments which aren't "visible", there's some really good stuff out there now - from Acoutsiblok sound barriers to QuietRock drywall board.

Read this article from Wired Magazine; deals with soundproofing without breaking the bank (too much) and in a place you can't modify too much.

-r-

Thanks to all of you guys =)
You brought there a bunch of informations not that easy to find

I use quietrock, and recommend it 100%. The stuff is rediculous, as compared to normal building methods.

Another concept I didn't see mentioned is out of square. Build any interior walls you can out of square, this greatly reduces direct reflections. And if you are putting any interior windows in, definately put them out of square with the wall.

Remember like anything else, you're only as good as your weakest link. All these methods and ideas work together to minimize the sound. You are going to need to be proactive every step of the way, from the framing method(if possible), to the weatherstripping on the entry door or doors (one of the radio stations I worked at actually had 2 doors in each doorway back to back that you had to close upon entering the on air, or the production studios)

Also remember the law of diminishing returns. The ratio of what you spend to what result you actually get is an exponential curve, and once you get past a certain point, you begin to waste your money.

Do some reading, and then do some more. We are all here to help, and don't forget to post some photos.

I will say:

Remember to love yourself and your ears and do not expose to loud music for a long period of time.

2K Watts is really loud.

As djfaber said, It will be 1.5K of low and two 250W satellites.
But you're right... we all should take care of our fragile ears


Thanks for your comment Peter

This message has been edited. Last edited by: G r i b o u i l l e,

I have 300 watts of low here in the basement and I barely ever get a single light on my master out. It's just too loud.

-r-

It depends on how you like bass I've a dual 10" JBL (2x200W) in 7 square meters and don't find it too loud at 3/4 load

Bass are the less harmful frequencies so I don't really care

This message has been edited. Last edited by: G r i b o u i l l e,

^^^ is deaf.

bass less harmful?

yeah, and if you send this message to 10 other people, every male in your family will grow an extra 5 inches.

wait...

did you say 20"? jbl makes a 20" jbl? jbl makes a 20" speaker and you dishonor it with a mere 200 watts? you should have them taken away!

i give my 32" cerwin vegas NO LESS than 15,000 watts.

no seriously, a 20" jbl? what's the model #? I've seriously never seen anything bigger than 18" in even their concert stacks.

Yep, we loose first from high frequencies due to position of hairs in our internal ear. ( http://www.ich.ucl.ac.uk/factsheets/families/F010074/images/ear.gif )
We loose about 2kHz every ten years, when you are 50 years old your range is from 20 Hz to about 12khz maximum.


(as you can see, we don't loose under 1k, I mean not at a specific frequency, so even a person exposed to loud basses won't suffer from it.
You should study that at school That's why old people don't ear well children who have high voices.

Sorry, It was 10" I'm more familiar with metric system... (10" is about 20cm)
I use this one http://www.jblpro.com/pages/install/JBL_SB210.pdf with SB-210-SAT. But it is more for bars and lounge areas. I love this one, it produces very clean and accurate basses

This message has been edited. Last edited by: G r i b o u i l l e,

WHAT?!