need help with diy sound proofing!

[Keith]

i wanna sound proof my rm but dunno where to get the sound proof sponge..anyone know pls help out! Thank You!

 

[Nefianz]

8) hello keith.. long time no see.. haha btw his room is in a private estate.. i tink it has some difference to hdb yea?

 

[soft]

the sponge are not really for sound proofing. they are for treating the room acoustic such as reflection and diffusion.

for sound proofing, you need WALLs - made of concrete and bricks.

cheaper alternative would be wood or plasterboard.

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

click on the "Construction" at the left.