I work from home a lot and I needed a quiet place. I decided to split our living room with a plasterboard wall. That was one of my best investments in 2010.
I didn’t have any experience how to build plasterboard wall. I checked youtube, went shopping and … the result is a small office with almost soundproof wall build for 360EUR(wall) + 200EUR (window). We built the wall together with my brother in law in just 2 afternoons + 1 day for painting.
The links what I used:
Videos
Watch from 2:55min http://www.youtube.com/watch?v=mNuU95YGzfc
http://www.youtube.com/watch?v=r4dmofAxwC0&feature=mfu_in_order&list=UL
Instructions
http://www.fermacell-drylining.co.uk/
http://www.fermacell-drylining.co.uk/orangebook/LS.Orange.secure.pdf
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Welldone Blog 
Such a tight casing around a soundproofs window means that the window will not only
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Your soundproof window will provide a home which is not only quieter but less
expensive to run, in one simple installation!
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Soundproofing technology of the highest level has been used in the
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