rob aylestone
Moderator
I bet it's annoying having a phone free recording studio!
I bet it's annoying having a phone free recording studio!
I had a local builder build an outer shell with 150mm heavy concrete blocks...
Miro - Sorry, it related to the lead lining - Faraday Cage and a phone free zone, or at least a phone call/text free zone!
ECC - There's no door to put the bolt on - just a weak spot in a perfectly normal looking wall. I know I can get out in an emergency!
Do people have land lines with phones anymore - I must admit, I'm noticing none of my actual work comes in by old fashioned phone any longer - they always ring the mobile?
Ha! If we lose power here it’s a Facebook event and we’ve never lost cell signals for a long time. It’s rare here.
Ha! If we lose power here it’s a Facebook event and we’ve never lost cell signals for a long time. It’s rare here.
I don't remember ever losing power AND cell at the same time. I did make a call with a landline phone about 10 years ago, just for fun. "Heya... you noticed the power is down in about 10 blocks here?" -"It is? Wait, but you're calling from home? What?". There's even a cell tower less than a mile from here but I think it was just outside the blackout, and of course there are other towers around. The much more serious problem in the long run would indeed be that a cell signal is useless without power, sooner or later your batteries for stuff will run out. I have a car charger for my phone that I could use for a while in a situation like that, but not for anything else.
That got me thinking though, aren't phone lines ALSO up on poles? Like you said "unless it too gets ripped DOWN". Depending on things. Would think it's simply too expensive to get them underground for millions of miles for everyone in the countryside for example. Never really paid that much attention to what exactly is up on the poles and what's in those huge insulated cable things I've seen even just running overground in ditches etc. (I think).
This is turning into an interesting thread now...
My studio building 'career' started with a 15'x10' shed in the garden with chipboard lining and carpet on every internal surface. To my teenage surprise, with a band playing the sound outside was nearly as loud as the sound inside but fortunately we were nearly 100m from the nearest house and the neighbours were understanding. The acoustics inside were fairly dead and the poor soundproofing probably helped by letting all the bass out.
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There are some good papers by G.D. Plumb on the BBC Research website with the attenuation of different wall types at different frequencies which are very interesting.
Scroll down to near the bottom of the list at
G.D. Plumb - BBC R&D
As I said before...
The answer to your question is in one of the linked papers (though I can't remember which one off the top of my head).
If the wall sounds 'hollow' when you knock on it, and you can hear people on the other side, there is NO insulation in the cavities at all. The door described is called a 'hollow core' door. Typical cheap construction method, and no, they do not block any sound either. Half the price of a solid wood door, of course. Maybe 1/3 these days with the ever-increasing cost of wood products.To g I think the wall behind me right now is some sort of drywall-fiberglass-drywall kind of construction (it sounds hollow when you knock on it), and I can very clearly hear people just walking and talking in the hallway there so the reduction is hardly even 20 dB. (slighlty off-topic fun fact: the inner doors here are so thin, that I once accidentally when opening, swung one completely open, the handle hit another door in the same corner and punched a hole clean in it. It looked like some sort of chipboard, but I was surprised to see it was only maybe 3-5 mm thick. And I didn't see anything inside the door to cushion anything, would've expected there to be fiberglass or something at least)
If the wall sounds 'hollow' when you knock on it, and you can hear people on the other side, there is NO insulation in the cavities at all. The door described is called a 'hollow core' door. Typical cheap construction method, and no, they do not block any sound either. Half the price of a solid wood door, of course. Maybe 1/3 these days with the ever-increasing cost of wood products.