What is the Cheepest way to build sound proof walls?

[Garak]

What is the cheepest way to build sound proof walls?

I'm looking to build a studio in a basement and I'm woundering whats the cheepest way to sound proof it so that someone can crank up a bass amp and play while someone sleeps in the next room. I'm looking for perfect sound proofing. Labour isn't part of the cost because I can do most things my self and what I can't do I'm sure my father can help me out there(he has been in constuction all his life)

I know mass stops sound so would a concrete or brick wall be the best thing to build a sound proof wall from?

Brick and concrete can't be used in the celing so what is an effective material to build it from?

To finish it I would paint the brick and cover it in sound treat ments.

 

[John Sayers]

What you are looking for is a high STC (sound transmission coefficient)

Go to this site and click on STC CHART. It lists all the typical wall construction details.

http://www.saecollege.de/reference_material/index.html

cheers
John

 

[darrin_h2000]

Build another Concrete room with an air gap of 2 feet from the other concrete wall should do that for you.

I do bass guitar direct so I get that anyway without building a room.

 

[Todzilla]

If you get down to it, sheetrock is really cheap. 2X4s aren't that expensive. For the levels of soundproofing you're speaking of however, you'd need something on the order of triple walls, each of which had double layers of sheetrock w/ perhaps a resilient channeling layer here and there. It wouldn't be that expensive, but you'd eat up so much space just ensuring air gaps.

Darrin's suggestion may have sounded flip, but if you really want sleeping beauty next door to John Entwhistle, his approach is probably the most realistic.

You could probably save a lot of money if you rented a portable cement mixer and did the mixing yourself. Of course, you could hideously screw things up and then be in a far bigger jam that if you messed up some framing and sheetrock.

 

[John Sayers]

For our local Picture theatre complexes they just use two walls 6" apart with a triple layer of 5/8" plastersheet. Do you really need more isolation than that??

cheers
John