I have a practice room in the basement. It's a good space for practice but it's adjacent to the furnace and hot water heater. I'm not looking to soundproof the room, but rather try to mitigate the sound coming from the furnace and hot water heater. Additionally, the bulk of the noise traveling through the house seems to be going through the vents and I'm hoping this will be mitigated as well. I've heard of sound mitigating curtains and I'm wondering a) would they be effective for this purpose, and b) what are the specific brands I should be looking at? Again, I realize a solution like this will only limit noise to a certain extent and will not soundproof the room. Thanks.