sound insulation

I am installing some rooms in my basement, one of which is an office, so I'd like to minimize noises from say the kid's rec room, or the wood shop. I realize that you can't completely eliminate the noise, but hey, anything that helps...
I am putting up all new walls, ceilings and flooring (except for the woodshop where I am leaving the floor as bare concrete).
So what I'm wondering is what can I do to minimize sound travel. If anyone has any 'sound advise', I'd love to hear it!
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Take a look at:
http://www.soundproofing.org /
In general you want to block air exchange. Air caries sound very well. (Try opening your car's window as a train is going by.)
Next you want weight. Heavy things (drywall lead sheets etc.) block sound well.
You also want to prevent any direct solid connections. Stagger wall studs or use special isolation devices to keep the sound from traveling through the wall (remember the two cans on a string (well wire actually worked) you want to break the wire).
Filling in wall cavities with sound absorption materials (acoustical fiberglass bats) will do a little.
Point source control (special absorb material) at the source of the sound will also help.
--
Joseph E. Meehan

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