Topic: Old EPA manual on sound reduction
I seem to be in link-posting mode. This is an EPA manual from 1978 that may be interesting. Meant for a non-tech reader, but it discusses sound transmission in some detail while examining ways to isolate and reduce sound in rooms and houses. Good for building a music room, etc. Or a quiet office. Much of this will already be known to many people here, but it goes into detail about how to determine sources of noise leaks, how to frame windows to reduce noise. Sound theory for carpentry, in a sense:
http://nepis.epa.gov/Exe/ZyNET.exe/9101...;ZyEntry=1
Searching the EPA site for "sound" or "noise" brings up many similar semi-technical documents. (http://www.epa.gov/nscep/index.html)