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  #1  
Old 06-11-2009, 04:49 PM
man_traic man_traic is offline
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Room within a room soundproofing

Building a rough-surfaced room-within-a-room say about 12 feet by 14 feet ish finished size (ie it would need to be a biggr room to begin with)

Has anyone done this and:

- How much does it keep sound out?
- How much space is lost per wall? (eg 6 inches? )
- What was the cost, and who would undertake such a task?
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  #2  
Old 06-11-2009, 05:43 PM
Leeee Leeee is offline
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Not sure really depends if you could carry out the work yourself ...... what materials etc etc.

I am in construction here and was using huge stick-on sheets of bitumen the other day and was wondering if i could coat the walls of a room to provide a dense surface to sweeten the sound. I do know that you can get 'accoustic' plaster board or sheet-rock in the US i believe?

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  #3  
Old 06-11-2009, 06:05 PM
Kevin James Kevin James is offline
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If your going to sound proof, aside from just doing the double walls you should be using special insulation made specifically for thast purpose and I cant recomend using some kind of dead sheet enough. Something like this:

http://www.auralex.com/sound_isolati..._sheetblok.asp
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  #4  
Old 06-11-2009, 06:40 PM
SCHORN SCHORN is offline
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I bought this book on that very subject as I would like to do the same one day.

http://www.amazon.com/Peace-Musician.../dp/0634089048

It's an interesting read and breaks down what to do and why.

Hope it helps.
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  #5  
Old 06-12-2009, 02:58 PM
Lime Twig Lime Twig is offline
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Does spiking your speakers make a big difference for stopping sound transmission as well?

I know it's recommended for improving sound as well as isolation but it seems to make sense that it would help lower sound transmission to your neighbours as well.

Any experience with this?
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  #6  
Old 06-13-2009, 09:49 AM
man_traic man_traic is offline
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anyone ever actually done it though?
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  #7  
Old 06-13-2009, 11:10 AM
soundmanshorty soundmanshorty is offline
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This

Quote:
Originally Posted by man_traic
anyone ever actually done it though?

SBS - Thrive Audio showroom in NYC was built last fall / winter, we had to do exactly this,

Its very time consuming & very expensive even to do it on your own properly will cost alot.

The system cranks, the room shakes like crazy and you hear nothing out of the room Because of the room in a room design.

http://wavemusic.com/community/showt...ght=membership

to check out this space go to:
www.myspace.com/soundmanshorty

http://viewmorepics.myspace.com/inde...lbumId=2382784

www.systemsbyshorty.com
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  #8  
Old 06-13-2009, 04:23 PM
man_traic man_traic is offline
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how much space each wall did you lose and what was the cost you would charge say for a 13ft by 15ft room
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  #9  
Old 06-17-2009, 02:52 PM
man_traic man_traic is offline
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bump.......
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  #10  
Old 06-17-2009, 04:10 PM
voltcontrol voltcontrol is offline
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Tips of a smaal bit of advice won't do here, you have to understand acoustics theory and be able to calculate the characteristics you desire for your room.

F Alton Everest's work is a very good source of info on soundproofing imo.
Ps I'm also interested on more good sources of information on this topic.

Last edited by voltcontrol : 06-17-2009 at 04:12 PM.
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  #11  
Old 06-17-2009, 06:06 PM
man_traic man_traic is offline
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If you look at my OP I was looking for specific space losses and ££ amounts...
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  #12  
Old 06-18-2009, 12:42 AM
Special.K Special.K is offline
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A lot of the materials used will be local products, but you should be able to get some type of Rockwool insulation bats & a sound deadening plasterboard (drywall). The gap between the two walls will depend on how low a frequency you are trying to stop and the cost will depend on the cost of products you can get locally. I just built a studio with a booth about that size & the materials for the booth were about $5,000aud. There is no room for mistakes when building these types of rooms, pack the insulation firmly and make sure there is no gaps around power points doors windows (builders always screw this up). Also when you hang the plaster you can get floating hangers for the furling channel which are worth the money for a bit of extra separation! I could go on but I found this link you should read, the biggest mistake people make is not understanding the principles behind what you are doing, If you understand why you are doing certain things you are less likely to do the wrong thing!
http://www.lenardaudio.com/education...oustics_3.html
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  #13  
Old 06-18-2009, 01:04 AM
Special.K Special.K is offline
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Quote:
Originally Posted by man_traic
If you look at my OP I was looking for specific space losses and ££ amounts...
What are you going to use the room for, if it’s for normal music playback like a small home studio or home cinema room, I would say you will need to lose about 6-8inches, 6foot would be nice but it isn’t realistic. You will have to start by re-insolating the existing walls and replace the plaster with more suitable plasterboard!
As far as rough costs go, it’s just too hard to say as if you are going to get someone to do the work the labor will be a huge cost. As you know the rough size of the room you should be able to work out the costs easily by making a couple of calls to plaster companies, lumber yards & insulation companies! You need to be realistic as well as a lot of insulation companies will lead you astray with quotes like “it reduces sound by 80%”… It’s all rubbish, isolation will vary with different frequencies and the weakest link will always be the construction not the products……..
I nice double brick room would be a good start of cause!!!!!
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  #14  
Old 06-18-2009, 08:13 AM
voltcontrol voltcontrol is offline
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Quote:
Originally Posted by Special.K
(Thnx for this link!)
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  #15  
Old 06-18-2009, 06:41 PM
Garage At Large Garage At Large is offline
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Use Owings Corning 703 insulation in between the walls. A box should cost you about $37.00 with about 12 insulation. They usually measure 3 X 6. You also need airspace (about 4 to 6 inches) before the next layer of sheetrock. Floor should be a floating floor. Some people use thick rubber pads similar to hockey pucks. Actually a lot of people use hockey pucks as they are solid. Doors/electrical/HVAC will be your main problem.
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  #16  
Old 06-18-2009, 06:43 PM
Garage At Large Garage At Large is offline
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Also windows should be caulked and all screws should be caulked as well. There is a good site online for all of this. I will have to search for it.
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  #17  
Old 06-19-2009, 02:46 PM
der geile ami der geile ami is offline
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i know a girl that does studio building. I'll ask her how much a small room costs to float, but she once said that hung ceilings typically cost about 100€ a sq meter. Adjust for local currency. Unless you have money falling out of your pockets or the location simply must be moved, i'd recommend finding a more suitable space that does not need such crazy isolation.
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