John Sayers' Recording Studio Design Forum Archive

Hi, Jeronimo - In Australia, the term is bagging - in other areas, it's sometime called "rendering" - what it means is to mix some cement and sand (kind of a sloppy mortar mix) and wipe it on both sides of the masonry. A slightly thicker mortar mix is used in "rendering", with up to about 1/2" layer of mortar on each side.

The purpose of this is to seal the porous surfaces of the masonry. In some of the more porous kinds of masonry, this will improve the STC of the wall by several dB... Steve

Yeah we use both terms steve - bagging is the loose sloopy mix you described whilst rendering is the full 1/2" cement layer.

cheers
john

Thanks for the clarification, John - I was thinking it was just a terminology difference... Steve

Hi,

After I consult my builder, he said that it's possible to move all the columns, so now the space is really big!
I already have a design here. It consists of one control room, one studio, and a soundlock which (hopely) can be used as a vocal/amp booth.

Comments please.

The grey-shaded area is only 2,6m high, while the other is 3,2m high.
I put the control room at the 2,6m high ceiling area. So my control room would be lower than the studio's height.

Any suggestions?

Ari

Ah - no poles - cool
the geometry of your control room design needs attention to stop the parallel walls?
cheers
john

There are no parallel walls, but the angle is very slightly. Is it enough, or do you think it needs more angle?
Also, the vocal booth/soundlock is quite narrow (width ranges from 1 to 1.25m), is it adequate for a vocal booth?

Ari

bolehnggak wrote:There are no parallel walls, but the angle is very slightly. Is it enough, or do you think it needs more angle?

Looking at your floorplan, the walls in the control room look like they are paralleled. Read around here and you will see the accepted minimum is a total of 12 degrees in wall splay to combat standing waves and flutter echo.

Bryan

Ok, here's my new picture.

I angled the side walls more, so from they are 6 degrees each from the local y-plane, so the total angle will be 12 degrees. Is it enough?

Ari

Yup - that's better

cheers
john

Boleng,
it looks like your CR is still not symetrical. on that wall adjecent to the "sound lock", you have a bit of a "broken wall" where the door is...or am I not seing correct??

Well, it's a broken wall indeed.

I've seen a few control room that's symmetrical, but they have some spcae that might have been adjusted to accomodate some needs, e.g. entrance, tape machine corner, etc.

But, if it's better to make the room perfectly symmetrical, should I move the door so it would be on the symmetrical left side of the control room?

Ari

bolehnggak wrote:Well, it's a broken wall indeed.

I've seen a few control room that's symmetrical, but they have some spcae that might have been adjusted to accomodate some needs, e.g. entrance, tape machine corner, etc.

But, if it's better to make the room perfectly symmetrical, should I move the door so it would be on the symmetrical left side of the control room?

Ari

Yes, symmetry is quite important when it comes to control rooms. I suggest you move the door to the right a bit and then simply have the control room wall go all the way to the back.

If you really need the space you could always add an aditional door and use the space that is left out as a little storage room - not worth it though imho.

How about the soundlock? How if I planned to use it as a vocal booth? Since the soundlock walls are connected to the control room walls, and I don't think that I could afford more space, (and more money) to build them as a separate room with separate walls. It's already small booth, which myself still questioning, is it adequate as a vocal booth.

Ari

bolehnggak wrote:How about the soundlock? How if I planned to use it as a vocal booth? Since the soundlock walls are connected to the control room walls, and I don't think that I could afford more space, (and more money) to build them as a separate room with separate walls. It's already small booth, which myself still questioning, is it adequate as a vocal booth.

Ari

I believe vocal booths should be tiny anyways

Ari, what sound lock are you talking about? I only see an entry with double doors at the bottom right.

Were you thinking about something like this? It could both improve isolation for drums to the outside AND be a vocal booth (if the outside noise levels weren't too loud) Steve