is this the wrong thread for this..

or does no one know how to isolate sound?

Hello,
I myself an not an expert on the matter, but I when I was looking for information for this, I found a great resource provided by Auralex acoustics which is an online booklet (or .pdf version if you download it) called Acoustics 101. This book was amazing with educated me on sound reinforcment. Be aware though, because this is made by a company, alot of the materials they suggest to use are materials that they produce, which is only to be expected, but they are quite honest about what you can subsitute if you are on a low budget. Overall, this is really the resource you should look at. The website is http://www.acoustics101.com/. Check it out! Also, if you are quite serious about a home studio, dish out the $30-$40 if may cost and go to a local audio store and by a book specific to sound reinforcement. The more professional guidance you have the better. Good luck!