Unfortunately, the soundlock is actually the entrance to the studio. Here I post the whole studio area. Actually it also need some suggestion of treatment, but I thought maybe I concentrate on the control room first, but if you have any thoughts, I would be very thankful.
The studio is not only for recording, but also for rehearsal. And lately I often record the people who rehearse there live to multitrack, so there are many leakage between instruments, which is tamed by running all amp direct, guitars using amp simulator, and the amps are turned down so they won't leak into the drum mics.
Well, actually the soundlock is needed for security purpose. Because the room is for rental use also, it's better to divide the control room, so everyone who is using the rehearsal room won't have to go through the control room, which may cause some unresponsible people to play or steal some of the gears in the control room, which was already happened. Also, they can use the rehearsal room, and I can still use the control room for some purposes, maybe tracking or partially mixing some stuff, or just looking for inspiration.
Well, maybe I will go back to my previous design. Here's the drawing.
(I posted this drawing in earlier post actually, sorry for inconvenience)
The pink line is insulation (don't know which insulation is good, is glass wool ok?) covered with cloth, and the green line is slot resonators.
Any suggestion? It's only a rough design, I need help on how big is the air cavity behind the slot resonator. Also more inputs are welcome. Thanks in advance.
...John, I notice you put the rigid fibreglass at the "leftbank" so that the black side is facing outwards. Any particular reason for this, or does it matter at all which way you turn it?