Re sound-proofing rooms

[Michael Kubovy <mk9y@xxxxxxxxxxxxxxxxxxxxxxxxx>]

I am trying to retrofit several experimental rooms that are quite poorly
sound-isolated, so that they will be at least moderately sound-isolated. Any
advice on relevant (1) books and articles, (2) companies that manufacture
acoustic door seals, ceiling tiles, and wall-coverings, (3) consulting firms
in the states not too far from Virginia?

Thanks,
|\    /|  / Michael Kubovy, Professor of Psychology
| \  / | /  Dept. of Psychology, Univ. of Virginia, Gilmer Hall
|  \/  |/   Charlottesville, VA 22903-2477
|      |\   off (rm 310): (804) 982-4729; lab (rm 319): 4751; fax: 4766
|      | \  my homepage--http://www.Virginia.EDU/~mklab/kubovy/
|      |  \ General Psychology--http://www.Virginia.EDU/~mklab/101.dir/101.html