[trumpetadam]

Originally Posted by Scott@RealTraps

For your situation, it's really less about using specific materials, and more about understanding isolation, including things like flanking noise, etc. (all of which is nicely explained in those articles on the Green Glue site -- and well worth reading even if you aren't going to use Green Glue). (Oh . . . and I don't work for them or have any commercial tie to them, by the way!) ;-) The most common materials that are typically used for soundproofing will generally be good for soundproofing to keep the sound of a trumpet. It's the low frequencies that are harder to deal with (for soundproofing) that will generally need more attention with regard to materials, etc.

Obviously concrete and brick are going to give you lower sound transmission levels, but it doesn't sound like this is really in the cards for you unless you want to knock down your shed and start from scratch.

You should be able to get some very good isolation using the materials you are already using . . .

Drywall is good (multiple layers is better) . . . it will help you to use something like a staggered stud configuration when setting up the studs for the inner shell of the wall. I assume the outer walls of your shed are a single layer? If they are already double layer walls, then you want to avoid building a triple leaf wall.

Layers of fiberglass or rockwool attached to one or the other layer of your wall (inner or outer), or a separate layer of fiberglass/rockwool on each (but not packed in so tightly as to create additional coupling between the inner and outer layers of the wall) . . . these can be helpful.

Metal studs will be better than wood studs as well.

The most important thing is to get the decoupling right.

I'm making some very big generalisations, here . . . but hopefully my main point comes through.

As to the floor . . . you don't say anything about your existing floor. Is it concrete? Dirt? Wood? It it's wood, how is it constructed. That information would be helpful to anyone trying to help you out with some advice. But, here again, probably the biggest concern with the floor is going to be to avoid flanking noise.

If any of the terms I'm using are unfamiliar to you, then, again, the articles on the Green Glue site are your friend (not to belabor the point, but . . . ). There are other places to get that information as well if you don't like the Green Glue site. ;-)

Thank you very much.

I have a wood floor and am pretty sure that this is going to be the biggest problem. I am trying to find some thick rubber that I can lay down. I possibly might put some under my stud wall to isolate it from the floor...
.....it just depends if I can find it and then afford it!

Thanks again