Take a read to find how the HD fiberglass traps (owens 705) perform.

dan

Acoustical absorption (such as fiberglass panels) reduces internal reflections and reverberation, but is not intended to reduce sound transmission through the walls and ceiling.

Sound-proofing a room usually means using special construction techniques that mechanically isolate interior wall surfaces from exterior wall surfaces.
One example is using two sets of offset 2x4 studs with 2x6 sole and top plates. The interior and exterior walls are then only mechanically linked at the top and sole plates.
Double layers of sheetrock will also help reduce diaphragmatic transmission, but might tend to intensify standing wave problems within the room.

Ahhh...I misread

Scotty,

> but will it soundproof my room as well? <

No.

--Ethan

>as the subject title, what is the best material for soundproofing.

Oh, reduce sound transmission?

Its not so much the material, as how it is used.

Building a home recording studio is the same problem, and one that has been documented pretty well.

F. Alton Everest wrote a book about building a home recording studio, which is a standard work for people who are serious about this. You can find it under the author's name in a lot of book stores and online booksellers.

Does anyone have any experience using "QuietRock" (Soundproof Drywall made by Quiet Solution)?
http://www.quietsolution.com/Products/Construction___Building/QuietRock/quietrock.html

Any success stories? It sounds (pardon the pun) like an enticing product.

-FRANKe

in my experience quiet rock works well(remember to do ur ceiling with it too or else ur daughters room upstairs might be a holding cell for all that sound)anyways we got in some new materials that are like dynamat in the car world. you put it up before the sheet rock goes on so it acts like ur "floating" the room inside rubber. one thing with quiet rock though is that it is no fun trying to mount anything to it. screens and rears take twice the time.

I had fantastic results from Accoustic Sciences "Iso-Wall" system when I built a listening room in my basement. ASC is the company that makes the well regarded tube traps.

Their system builds upon your framing (you have several
options) and "floats" the dry wall on resiliant channels plus uses their "wall damp" material on all contact points and between multiple layers of drywall.

My goal was "never be told to turn it down" and that is what I got. No one in any bedroom can hear a sound and only a little bass gets through to the living room right above (heard in a quiet house standing in the room).

http://www.acousticsciences.com/index.htm