Does anyone out there know of a kind of paint that will absorbs sound? We are living in a home that echo and we want to souondproof it in some way. We had soundproofing put into the walls when we built it. Its a large room 37 x 27 with wood floors. Large area rugs are not helping. Thanks you!

No such animal as acoustic paint.

True sound deadening techniques usually require structural changes by framing separated partitions in front of existing walls and below existing ceilings, changing doors from hollow to solid, covering wood floors with carpet, etc...

All the hard surfaces tend to reflect the sounds. You might try adding soft wall hangings like quilts or tapestry on the walls to deaden the sound. Upholstered furniture may help too. They sell insullating paint to stop heat transfer but not sounds to my knowledge.

There is this stuff called Acousti-Coat at http://www.hytechsales.com/sound_faq.html. I've never used it, but from what I know of physics, it should at least reduce the reflection of sound waves.

You could also try any type of texture painting to reduce the echoing effect. The mere fact that the texture will prevent sound waves from reflecting in a uniform fashion will have a minor effect of canceling.

There are other faux finish materials that you can try too. Faux Effects makes a material called softex. You can roll it on and color it. Their are also natural texture products too. One 'over the counter' company is Silkcoat. Its basically a cotton/silk plaster that you trowel on.Only about 1/16 to 1/8th thick and you get about a 20% sound absorption.