When building a recording studio, construction soundproofing is a two-way problem; you need to keep noise from escaping the sound room, and you also need to keep the outside noise from entering the sound room.
Three things are instrumental in providing good sound control; rigidity, mass and distance. The results of building these conditions into your space are; thicker walls, floors, ceilings and door…at least two times thicker than standard residential construction.
If you are building a recording studio from the ground up, building a room-with-in-a-room, or gutting a space and rebuilding it, its possible to construct walls and ceilings that greatly help reduce the bleed of noise either into or out of your studio and therefore provide soundproofing.
Float the floor-Install rubber pucks or rubber mats underneath the sub-flooring, then build the walls and ceiling on top of the floating floor.
Sandwich the walls-A layering technique for the walls using a layer of drywall, a layer of limp mass noise barrier, a layer of OSB, a layer of drywall, a layer of noise blocking panels, and maybe a layer of padded wall treatments.
Green Glue-this is an amazing product that really works. Green Glue is a Visco-Elastic adhesive used in between sheets of standard drywall, wood product paneling, cement board and other building materials to reduce sound transfer.
Double wall construction-Two walls are constructed next to each other separated by an air space.
NOTE: For this application it is important to seal everything, any space that air can get through will prevent sound isolation by letting noise creep through the cracks.
Install Acoustic Insulation-we are talking about the in-wall/ceiling treatments here. This is the stuff you apply during construction, and it is a bit different than the standard insulation used in home or office construction. These products are designed to do a much better job at bass trapping, overall absorption, thermal control, moisture absorption and sound transmission loss.
Use Mass-use extra layers of drywall, OSB, heavy plywood, etc. It takes heavy material to stop low frequencies.
NOTE: This method of sound isolation will change the rooms acoustics; better recording studio soundproofing means more low-frequency energy in the room.
Noise-reduction glass-Use double-pane, noise-reduction glass for windows.
Noise-reduction doors-Use two solid-core exterior doors hung back to back separated by an air space, hung on the same door jamb.
Quiet HVAC System-Install the quietest, most noise resistant HVAC system you can afford.
With all of the layers that go into a recording studio sound control, soundproofing also means that you need to provide ‘beefed up’ framing, foundation and roof trusses. And guess what, your space just got smaller. Is it still big enough? Sometimes you walk a fine line when trying to build in great acoustics and at the same time provide adequate recording studio soundproofing.