We just gutted our bathroom to the studs. It is right next my son's bedroom, and I thought since the walls are gutted, maybe I could deaden the bathroom sounds a bit. No plumbing is between the rooms -- it's just the 5' side of the tub that is.

The walls in my son's room are plasterboard (house was built in the 50s). We've been told to put fiberglass insulation between the studs to help deaden the sound, but then I got to reading that Homasote or acoustiblok might be good, too.

Any suggestions?

Thanks a bunch for your help!

MarthaB