I'm building my 2 car garage studio,and have a question:
If the control room will be 12'.6" x17' x9' Height ( which is ultimate Golden Ratio) ,is it ok that the room is still rectangle?
All the studio designs I see here,are not rectangle.
For instance:Is it better to have the width be like 11' in the front of the room,and like 14' in the back?
Also,if I frame out new walls in front of existing walls(Dbl wall constuction), with air gap,etc... but,the ceiling and floor (cement slab) are shared between both walls....
Does this completely defeat the purpose of the Dbl wall constuction, with air gap?
Would it be no different than a single wall construction at that point?
Or is there still a good gain in stopping sound?
Massive thanks to all help,as I'm at the insulation stage,and next will be ,To Dbl wall,or not! :)
Golden Ratio , but Rectangle room???
Originally posted at johnlsayers.com, topic 8348.
Anybody? :(
Aloha GMo,
In regard to the interior walls -I'm building my 2 car garage studio,and have a question: If the control room will be 12'.6" x17' x9' Height ( which is ultimate Golden Ratio) ,is it ok that the room is still rectangle?All the studio designs I see here,are not rectangle.
the first thing you must do is eradicate all the parallel walls in a studio design. I believe that a wall must be at least 12 degrees off parallel to stop parallel wall standing wave interference. That's either one wall at 12 degrees or two walls at 6 degrees each. If you can afford to make the angle bigger, do so. Also you can create angled walls within a rectangular room by adding acoustic treatment. (I'll demonstrate that in the pages on wall treatment). (Note: having non parallel walls doesn't entirely stop standing waves - they still form within a room but along different lines of repetition). The main reason for having angled walls in a control room is because of reflection control of the high frequencies for true imaging from your speakers. This effect also happens between the floor and the ceiling so to stop the effect you must angle one. - John Sayers http://www.saecollege.de/reference_material/index.html
Having a dbl wall will help reduce airborne sound transmissions, but depending on construction, you may have to consider sound transmitted by flanking. Try a search on flanking, sway braces/brackets. Also, even if you are constructing a dbl wall, proper construction practices will contribute to the amount of sound transmission loss. See attached STC ratings diagram. Hope this helps, Aloha 8)Also, if I frame out new walls in front of existing walls(Dbl wall constuction), with air gap,etc... but,the ceiling and floor (cement slab) are shared between both walls....Does this completely defeat the purpose of the Dbl wall constuction, with air gap? Would it be no different than a single wall construction at that point? Or is there still a good gain in stopping sound?
Thanks. I guess I have to make the room not rectangle.
I bought the book, Build it like the pros, and I'm finding lots of good info. I recognise the STC wall chart from the book.(A real eye opener for me)
Anyways,I was gonna make the control room 9'x12'6"x17',as this was one of the golden ratio's in the book.However,I'm not sure if angleing the walls changes those dimentions?
I also can't find any info on how much I'll lose by having a common ceiling connecting the 2 wall construction. I know it's not as good,but is it still worth doing a dbl wall? Or should I go single if the ceiling is connecting both walls?
Thanks again,you've been a great help!
keep in mind the angled walls could be treatment type walls as opposed to isolation walls (or a combination of this). in Kendale's drawing the angled walls would be treatment type walls sitting inside a golden rectangle room.
Angling the walls gives a modest amount of diffusion, and elimates flutter echo problems, but doesn't prevent standing waves. These will happen no matter what kind of geometry your walls are (the only time you don't get standing waves is outdoors). Fortunately, if you're willing to invest a little more time and effort into making acoustic solutions like abosrbers and diffusers the diffusion and flutter echo problems are really quite easy to treat. In my opinion it's not terrible to have a rectangular room...just recognize that acoustic treatment is going to be necessary.
Cheers
Kris