how to sound proof

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Member Since: Mar 04, 2009

i have heard a layer of air is needed to soundproof, not being a carpenter my plan is just to build another wall(2x4 frame and drywall) in front of the existing walls, i dont know where the layer of air will be. i have seen in movies and on tv sound proof booths that arent thick as two walls and even have windows, is that all make believe?

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MASSIVE Mastering, LLC
Member
Since: Aug 05, 2008


Nov 26, 2010 08:03 pm

I've seen "studios" on TV and in movies that have foam thrown up all over the walls as if that's actually a good thing.

Anyway -- A lot of this depends on how far you want to take "sound proofing" -- A couple additional layers of drywall over the existing drywall is reasonably effective if you're talking about ambient noise and typical acoustic instrumentation. If you're trying to keep the neighbors from hearing band practice, you're going to have to go a lot further than that.

Hobbyist musician,pro recorder
Member
Since: May 15, 2007


Nov 26, 2010 11:30 pm

A professional radio or recording studio will have double windows with air between them, yes. Whether you need that in your own isiutation (home recording?) it's unlikely you need that degree of proofing, unles you have a specigic issue with windows or need for them.

Prince CZAR-ming
Member
Since: Apr 08, 2004


Nov 27, 2010 06:49 pm

I suppose that theoretically, 2 walls with a vacuum between them, AND, they weren't mechanically connected, would be a real sound-proofing. Though it'd be hard to create such a thing, I'd think.

I suppose a vacuum in between panes of glass would make for it to be sound-proof, of sorts. Maybe you can buy pre-vacuumed windows, for sound-deadening. hmm, dunno.

For real sound-proofing, MASS and AIR are your friends. Sound is energy, so anything it has to move to transfer through will cut down on its power. Drywall is good, as MM says, as it adds mass, but it couples inner walls to outer walls, thereby transferring the energy to the outer area. But it still knocks down the energy. Having air space between (and de-coupling) will really knock down the energy.

But it gets expensive, and difficult, as MM hinted at.

Member
Since: Mar 04, 2009


Jan 05, 2011 10:26 am

my band practices in my house. i was thinking of making another wall and was just gonna butt it up against the existing wall which will give me mass,thanks for the info. i will do more research and figure out how to add a space for air in between. it doesnt have to be super soundproof. i as hoping to get away with practice in the middle of the night.

www.TheLondonProject.ca
Member
Since: Feb 07, 2005


Jan 05, 2011 02:02 pm

^^^ Just make sure that you decouple everything. Anything that is touching or connected (eg: nails) will transfer sound

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