Listening room project part 9. 

Cheers Neil. it's going to take a load of tweaking but, it's going to be a useable space soon,

Luckily enough, my mate Nick's a retired spark. He's been coming down and helping with the cabling and wiring, even having company when I am down there changes my outlook, It can be lonely boring work when you're trying to do it on your todd

Thanks mate. I need to get it done, the building costs me money instead of making ne money, hopefully this'll be the year it starts making dough

@@zambotv8150 brilliant 👏

The area of the aperture limits the total performance of the enclosure. If the aperture percentage is not small enough, it doesn't make sense to reach above a specific level of performance. Air tight is not enough, ideally sound will have to pass through mass per area equal to that of the wall or a more complex path with lower mass but high absorption. Such a path may not even be air tight.

Aye Paul, to stop sound moving you need to stop air moving... Everything I am doing is helping but, I think you would want two brick built structures inside each other that didn't touch to do it properly? I'll keep chipping away at it, every day's a school day and all that

​@@zambotv8150By using the same mass in two walls of half mass, you achieve decoupling. Performance improves if they do not touch, because energy has to climb to all directions though the wall to the boundaries on ceiling, floor and side walls instead of passing directly through to the second wall and into the room. The first improvement after 15kg per m2 or so is to separate the masses and add some mineral wool in the gap. The more closely the studs are the worse it is, and wood is. Inferior to lightweight steel. Two studs, one on each side is better because there are less low resistance paths. Elastic connections also help.

@@aristotle_4532 Oh mate thanks for checking in and commenting... Everything's helping but I think my main problem just now is lack of mass? As I said in the video I should be able to double skin the outside of the room relatively easily so I'll start there. PLEASE keep watching and commenting, I am hoping we can help hifi buffs, musicians, producers and even just people who are having noise issues from roads, neighbours etc

​​@@zambotv8150f you have one 12.5mm drywall, mineral wool or other absorber covering 80% of he gap, and another 12.5mm drywall on the inside, it is more than enough. It is cheap to add another layer of drywall, but the doors will not be good enough. Any elastic will help in the screw positions, even a little epdm.