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Re: Sound insulating doors in a studio space

Are you sure it is through the door, and not around its edges? Even a 
tiny air gap can let a lot of sound through. So, you might try 
closed-cell foam weatherstripping around the edges, and a 
"squeegee-like" rubber threshold strip on the the bottom of the door to 
seal the crack above the floor. The trick then becomes making sure the 
latch is adjusted properly, and the door is stiff enough, to seal 
tightly against the resistance of the weatherstripping.

If all that doesn't address your problem, the best thing for reducing 
sound transmission (a different problem than reducing sound reflection 
within a room) is simply mass. If the doors are hollow-core, 
lightweight types, replacing them with solid wood doors is my 
suggestion. But first I'd take a close look at the door seal. An 
acoustician friend used to say, "if it won't hold water, it won't hold 
sound".

Good luck,

Alex S.


On May 25, 2004, at 9:13 PM, Emile Tobenfeld (a.k.a Dr. T) wrote:

> Hi,
>
> My wife and I are buying a house, and we know that there is some sound 
> leakage between the room that will be my studio and the  room that 
> will be our bedroom. The leakage is almost entirely through the doors, 
> so our first pass at dealing with it will be to put sound insulation 
> on the studio and bedroom doors.
>
> Anyone have suggestions on suitable material that is reasonably easy 
> to put up, looks reasonable, and can be taken down without damage 
> should we sell the house at some time in the future? If you are Boston 
> based, and do, or know someone who does, this kind of work, please let 
> me know.
>
> Thanks.
> -- 
>
> "The test of a first-rate intelligence is the ability to hold two 
> opposed ideas in the mind at the same time, and still retain the 
> ability to function."
>
> F. Scott Fitzgerald
>
> Visit "Before the Fall -- Images of the World Trade Center" at 
> http://www.foryourhead.com
>
>               Emile Tobenfeld, Ph. D.
> Video Producer                        Image Processing Specialist
> Video for your HEAD!                  Boris FX
> http://www.foryourhead.com            http://www.borisfx.com
>