Transmission Loss, drums, decoupling & Inflatables

  • Thread starter Thread starter drw1978
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drw1978

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Hello everyone :D

I've been looking into DIY solutions to reduce sound transmission from my spare box bedroom so I can play drums. It is located upstairs over to the far left hand side of my house and the far right hand side of the house connects to the neighbours which is small bonus to begin with.

I have looked into to this subject quite a bit, involving floating floors, stud walls with air gaps, mass/density of materials including plasterboard or sheetrock as you guys in the US call it, rubbers, vinyls, rockwool, neoprene etc.

However ideally i don't want to start installing floating floors and extra stud walls due to the size of the room which is about 2m x 3m because of the general mess it'll cause to the room etc.

I was looking mainly to kill as much Bass frequency transmission as possible. I've noticed the bass travels through the floor and when down stairs its quite loud and echos through the kitchen which is the length of the whole house. The sound traveling across the upstairs does have several walls to pass through before reaching the neighbour so I'm concentrating on killing the floor noise first. I appreciate this may not be going directly through the floor it may be hitting the walls and transferring down that way. However I have got to start trying stuff out and experimenting to see how to kill that bass.

I'm initially thinking of installing a drum riser that has as little contact to the floor as possible which will act more or less like a portable floating floor. I have played with idea of foam 2"x4" strips, or spaced neoprene pads underneath the platform to absorb impact and provide decoupling. I understand this is usually a way to getter a better sound in studios but my thinking is that it will also decouple the platform from the floor like a floating floor. The platform would be MDF fiber board with 1 or 2 layers of heavy 3mm rubber on top to add mass.

From there I could look into making some dense panels/walls/shields to place onto the portable floating floor to stop flanking sound....?

so question 1: how does that sound?

Question 2: I have a thick rubber inflatable mattress, now I'm already thinking that's not going to work too well???....but if you imagined that the inflatable mattress was made of 5mm thick, heavy, dense rubber like a dingy say, how would that handle bass transmission? Would the dense rubber, then air, then dense rubber again make the bass transmission less or would it make it worse, or would it do very little at all?

Thanks in advance please excuse my ignorance.. :oops:
 
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