Office Room Soundproof
https://deanubdu666.page.tl/Soundproof-Construction-_-It-h-s-Not-As-Hard-As-It-Appears.htm
You have a rock band, and no place to exercise. Well, you might exercise in your cellar, garage, or bed room yet you live in a condo, or a removed house with next-door neighbors crowding you on both sides. What