This shows the back of the live room wall. Bryant is attaching 5/8 drywall to resilliant channel, being carefull to attach screws to the channel only and not the studs. You can see where the main trunks of the ductwork have been covered with plywood and soundboard.

This photo shows the framing of the control room wall. These walls will go up and then be taken down to finish the back side with soundboard,resilliant channel,and 5/8 drywall. Then hoisted back into place. Caulking all along the way.

Here Bryant is constructing a custom box to hold the wall plate(live room side). Have to get all the cables thru the live room wall before we throw up the control room walls.

another shot of the wall plate

Another shot of wall plate.

Wall plate after being attached to the live room wall. We left about a foot of extra wire in case I need to get in there for any repairs to my soldering.

This is a shot of one of the doors. I had trouble coming up with a plan for studio doors. What I did was order some pre-hung solid core interior doors from the Home depot. These run $89.00. I then ordered a roll of that sound barrier mat. It's that black vinyl looking stuff you can find at most acoustical supply places online, and attach it to one side of the door. It add's an stc of 27. Then as this photo shows, I bought some really good door seals. They seal the doors with neoprene on all sides. It also includes a seal for the door bottom that presses a large piece of neoprene into the threshhold as you close the door. These run $180 a piece. Total door cost-$320 a piece, And just as effective as a custom acoustic door but at a fraction of the price.

We have now gotten to the ceiling. You can see the back side of the control room wall with the brown sound board. The back side of this wall consists of soundboard, resillient channel and 5/8 drywall. The large piece of lumber with the blue stripe is a micro lam that will support the ceiling, keeping it from touching the rest of the house. Lots and lots of caulking between all of these steps.

another shot

Floated walls. This is how we did it. I ordered a large piece of neoprene and cut sections the width of the base plate and placed them under the base plate every couple of feet. We then drilled a hole thru the stud and then using a masonary bit drilled into the concrete floor. Then we dropped an anchor bolt into the hole. We then put a piece of neoprene tubing into the hole and around the bolt. This keeps vibrations from transfering from the bolt to the stud. Then we added a neoprene washer and then a metal washer and nut, and cranked them down.

Sheet of neoprene rubber from binkelman rubber co. $120.00 And it will be enough to do the whole studio. Compare that to those u-boats.

We should be complete in a matter of weeks so I'll have another update shortly.
Mike.

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