Air Space

Trying to lay out my rooms and want to know what is ok for room seperation. I am trying to keep one foot but I lost room I was counting on for my live room. Is 6 inch space pack with isulation ok?

SO you are saying wall/studs filled with insul - Air Space 6" - Wall/studs filled with insul. If so, then yes that is cool. Just remember More is better. In My Walls, I have about 12" Of space between studs Bryan Giles

I know this is a dumb question but will it make that much of a difference? I really would like to get back that extra foot or so in my live room. Is it better to leave the space empty or load it with insulation between the rooms? Also, what are your layers you are using on the walls?

Carl, first of all dumb questions are the ones you don't ask til you've already done it wrong... Air space between wall leaves is a "dimishing return" thing - going from 4" to 8" gets you about 5 dB, no other changes - going from 8" to 16" gets you another 5 dB, but the next 5 dB will cost you another 16" - each doubling of air space nets you about 5 dB improvement. 8" with 3 layers of sheet rock would probably get you about the same as 12" with two layers, so if you need the space add layers. Check back on your "complete section" thread, most of the answers are there - Air space between walls is best filled to mild compression with insulation. This helps a little because of direct attenuation, but mostly because of panel damping. The two layer combos that most people report as working best are sheet rock/soundboard/sheet rock, and 5/8" - 3/8" - 1/2" all sheet rock. One person I really respect on another forum did his last walls with all sheet rock as above, and hears NOTHING with drums playing on the other side. Oughta be good enough... Steve

Awesome man. I have to say, I have received so much information on how to better my place from this forum. I like the idea of the 8" with 3 layers. Would you suggest 3 drywall layer for the live room since I will mostly be tracking drums and bass in there? And the sandwich w/ soundboard for the control room? BTW we are planning on John professionally designing our facility, are all these wall/floor/ceiling specs part of that?

"Would you suggest 3 drywall layer for the live room since I will mostly be tracking drums and bass in there? And the sandwich w/ soundboard for the control room?" - sure, that should work really well. Be aware, though, that this does nothing for acoustics, only sound proofing. The stiffer you make your walls, the more bass trapping you'll need. The thing is, there isn't really a lot of choice if you want good isolation. If you make the wall leaf in a room where you want bass trapping with lighter materials so they flex more and act as panel traps, you lose isolation. So if you want BOTH isolation AND bass trapping, you just about have to first make it soundproof and THEN deal with the bass buildup. John's designs are his own, you'll need to talk to him about wall construction. If you want to use my ideas, you're welcome. John may have some improvements on my suggestions. If so, I'd recommend listening to him, I'm just the new guy... Steve

Hi Guys, Your forum is a goldmine of info. Thanks for the help & the welcoming vibe so far. I'm building a booth/recording room within a wooden building (2x4 inch stud building on ground floor piles) using 2x3inch wood and going for a room in a room design. Space is tight and I'm planning on a 2 inch air gap between walls & ceiling and 2 layers of dry wall out the outside of each wall. I'll also use rockwool within each wall of course. I'm unable to alter/add to the floor , which is particle board then underlay then think wool carpet. I'll also use two single glaze glass sliding doors (2000mm high x 1800mm wide) inner room size is 3798mm x 1776.6mm x 3704mm x 665mm. Height is 2376mm (I've attached a sketch of the floor plan) I'll be using the booth for voice overs, singers, horns & percussion and rarely drums. Would a structure like this give enough sound insulation? If not what should I do to get an acceptable level of insulation? Any idea what thickness glass will be enough? Also will this room sound OK for recordings in terms of nodes? I don't get a lot of noise from outside but don't want to annoy my neighbours! Please ignore the mistakenly drawn wall (with the "x"s on it) Big thanks Jason

Whats up with bumping a 6 year old thread

spam maybe?

Hey guys, Sorry, not spam. I'm new to this forum stuff and just saw the post and added to it without thinking. apologies. Jason

Hey Jason. Welcome. Better to start your own thread, and put all your questions and other data in that. Makes it easier to keep track of who is who. - Stuart -