john, can you tell me if i'm right?

  • Thread starter Thread starter guhlenn
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guhlenn

guhlenn

Oh REALLY????
hi john,

i've read every bit of your site and think i got it but as i tend to forget or mix up things i would be extremely happy if you could check this.

our rehearsal/studio room is about 4x 6 and rectangular i'll post the exact measurements later, just to see if the idea will work.

Now if we insulate with Rockwool that would kill the high's right? And then to kill low frequencies the hanging board idea (i forgot the name, see what i mean :-). if i put large ones in the corner and varying them in size all over the ceiling will the mids/lows be eliminated enough? in other words will this give an overall good sound absorption?
Or should we put a false wall in an angle too? cuz i don't know if that will be possible.

and another thing:
the walls are double by themselves (again i don't know the official term :o( will it still be necessary(or better) to get the rockwool off the wall? or is the space between the walls practically the same?

I hope you will answer my questions
thanks anyway
guhlenn
 
Yes you are correct - the rockwool will kill the highs and the hangers the lows and lowmids. But the hangers will also kill the highs as well. That's why I recommend using the slats as they keep the highs going as well as cutting the low mids. I'd use the hangers on the ceiling and a variable slot res on 1 or 2 of the walls where the slot creates the angle i.e. 4" off the wall at one end and 10" off the wall at the other:

slat 1.gif


The angle can be wall to wall as above or it can be floor to ceiling with the 4" at the bottom and the 10" at the top.

Cheers
John
 
thanks john,

i really appreciate this but i've got some more questionns. Hopefully you'll reply.

I've got the measurements : it's a rectangle and we're gonna devide it in to two rooms.
the total area is 2.5x8m (metric system, sorry) we can easily divide it into 2.5x3.5 for control room and that leaves 2.5x4.5 for the rehearsal/studio.
the height is 2 m in the control room and about 2.5 in the studio as we're gonna remove the floor.

we've got a ceiling and above that is the roof so there's some space for the panels to hang...

this is what i was thinking:
should we angle the back wall (2.5x2.5) and get those slats on it? and on one of the two side walls(4.5x2.5) those slats but them not angled and the rest curtains or carpet on the wall and ceiling.

then another thing (i know i'm asking a lot , sorry but you're someone who could know...) The walls are double with an aircavity between them. should we still take the insulation + fiberboard + carpet of the wall so another air-cavity is created?

Thanks alot,
I 'm really gratefull,
guhlenn
 
guhlenn - try something like this. You still retain the floor space but put broadband absorption. I don't know what you mean about the ceiling but here's a starting point..

Studio.jpg


Cheers
John :)
 
HHi John thanks for replying,

it's a normal roof like two triangles connected by two rectangles and below that there's the ceiling it's flat that leaves a space between roof and ceiling about 0.5 meter. should we hang panels there?

i don't get the slot/rockwool idea

i'm feeling really dumb right now, but a meter rockwool than a meter slots, etc.?
and the other wall the same?

please don't make fun of me as that would ruin my last bit of selfconfidence
greetz&thanks
guhlenn
 
guhlenn said:


but a meter rockwool than a meter slots, etc.?
and the other wall the same?

guhlenn
Click to expand...

You've got it but you only need to do it on one wall, that should be enough.
Sorry I'm the dumb one ..still can't figure out your ceiling
Cheers
john
 
ok,

you make me feel a little less dumb but still...

the thing is in the netherlands they call it a spits dak or puntdak which translated end s up in point roof or edge roof but i don't think that will mean anything for you...

when kids draw a house they always draw a 'point roof '.

I know how to explain.

the symbol of home-recording?

it's a point-roof!!

beneath there's the ceiling so we should be able to insulate that properly too.

Now about the other wall: we've got neighbours they don't like us (if they keep hearing us that is :-) do you think it won't be that bad?


thanks again,
guhlenn
 
With only 2.5m (8'4") you havn't got much room so I wouldn't do it to both walls, only the wall on the neighbours side. The cavity above the ceiling is no use to you but get in there and line the ceiling with some insulation to stop resonance in the chamber.

Cheers
John
 
the room is pretty small, isn't it?

ah well we'll have to make the best of it.

thanks again for your advice . i'll post some pictures when the work begins.
I wont bother you anymore........, well maybe later ;-)

greetz
guhlenn
 
maybe now?

i got most of it...
but what to do with the wall between the two rooms?
insulate on both sides with rockwool?

thanks
guhlenn
 
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