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I have 3 DIY created rooms in my large live/work studio/artist loft. They are made with 2x4 and 2x6, framing with drywall walls and plywood ceiling.

The apt has 14' 7" ceilings so we just have enough room for the 6' tall upper level. I'm currently framing in these upper walls. The hope is that I can turn this upper space into a great little music studio with drum kit, amps, keyboards, etc.

How can I best insulate this space so that it's quiter than it is now for my roommates (I have the drums up there already :-) ) and its especially quite for my neighbors. The apt walls are mostly drywall Side to side between concrete pillars and the floors and ceilings are both concrete.

Also, per the buildings charter (supposedly, at least) I have complete lee way to construct within the space.

Plan is now to buy some large foam and put the amps on blankets per this question

My neighbor keeps complaining about my music. How to soundproof my apartment?

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2 Answers

Have a look at my answer on this question regarding acoustic foam. You will be able to cut down sound propagation significantly using it, by coating the walls and ceilings of your rooms with the foam.

If you have the capability, you could make a significant difference by mounting the rooms on rubber bushings.

This may be overkill for your purposes, but it is used for recording studios etc. as it dramatically reduces vibration through the walls and floors being transmitted.

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A friend of mine was trying to do this and the advice he got from a sound engineer was to build a second wall inside the room with a gap between the new wall and the existing wall. The sound waves are absorbed by the interior walls and because of the air gap much less sound is transfered to the exterior walls.

I think the use of metal studs on the interior wall was also suggested because the metal provides less surface for the sound to travel from the interior to the exterior.

The ceiling could be isolated similarly but the floor is a bigger problem and since the floor can act as a big sounding board and is presumably attached solidly to the walls it will be difficult to deal will. The principle is the same but the practical aspects are much trickier.

Basically you need to absorb the energy in the sound waves. Transitions from one transmission medium (e.g. air) to another (e.g. wallboard) are the best way to absorb the energy.

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