Here we go with a few helpful sites concerning room acoustics...

http://www.marktaw.com/recording/Acoustics...gWaveCalcu.html

http://softwaredesign.com/RoomDimensionsCalculator.html

http://www.epanorama.net/links/audioacoustics.html

http://softwaredesign.com/RoomDimensionsCalculator.html

http://www.trinitysoundcompany.com/rt60.html

http://www.silcom.com/~aludwig/Room_acoustics.html

http://www.concerthalls.unomaha.edu/links/alinks.htm

http://www.ecoustics.com/Home/Accessories/...tment_Articles/

http://www.fastaudio.com/INT/absorber300.html

One more link about Room Acoustics Treatments by Adrian Wittenberg.

Good sites in Acoustic Treatment.

http://www.realtraps.com/

http://www.audioholics.com/techtips/setup/...RivesAudio.html

http://www.axiomaudio.com/roomacoustics.html

http://www.crutchfieldadvisor.com/ISEO-rgb...macoustics.html

PAFEC VibroAcoustics Architectural Modeling -- Models sound propagation in a realistically shaped small room.

- JP

A few more links about Room Acoustical Treatment:

http://www.acousticaltreatment.net/

http://www.acoustics101.com/

http://www.customaudiodesigns.co.uk/help.htm

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