New Spaec for Mixroom, please help.....

Dear all, After browsing and post some question in various thread, buying Everest's and Gervais book. I decide to buy an 10mx9.9m space. We'll built a house on it and of course a studio for Mixing, Some overdub/re-amp, and movie pre mix and editing. But, because my limited english and lack of construction knowledge, I realize I need you guys to make my dream comes true. I attached simple layout of the space and also studio space. I ask the developer to make a room based on the L.W. Sepmeyer room ratio 1:1.14:1.39 where the ceiling will be 3m. Is it right? The ratio is before the treatment right? Another question : 1. I really confuse where is the best point to make a door? 2. Is it Ok to put a window in center of "speaker side" wall? Is there any maximum size of the window frame? Because humidity of our area (tropics) and I don't plan to install HVAC (very costly here) I'd like to have open window in the morning :). 3. The wall will be brick, plester outside. Is it okay to install only 1 gypsum for sound proofing? so the construction will Mass(brick wall)-Air-Mass(gypsum). is it effective to "soundproof"? and how to integrate the construction with the bass traping, broadband absorber, diffuse, ceiling/cloud, superchunks/cornertrap etc? I mean can I build the one frame for soundproofing and acoustic treatment? Regards Joseph

Aloha and welcome to the forum,

I attached simple layout of the space and also studio space. I ask the developer to make a room based on the L.W. Sepmeyer room ratio 1:1.14:1.39 where the ceiling will be 3m. Is it right? The ratio is before the treatment right?

That is correct, the ratio is before treatments. L.W. Sepmeyer Height Width Length 1.00 1.14 1.39 3m x 3.3528m x 3.9624m (9’8” x 11’ x 13’4”)

I really confuse where is the best point to make a door?

See pic below.

Is it Ok to put a window in center of "speaker side" wall? Is there any maximum size of the window frame? Because humidity of our area (tropics) and I don't plan to install HVAC (very costly here) I'd like to have open window in the morning Smile.

Yes it is okay to put a window between the speakers, however it will affect your isolation, especially when open.

The wall will be brick, plester outside. Is it okay to install only 1 gypsum for sound proofing? so the construction will Mass(brick wall)-Air-Mass(gypsum). is it effective to "soundproof"?

That depends on how much isolation you require from sounds outside (traffic, aircraft, neighbors) disturbing your recordings and sounds inside disturbing your neighbors.

how to integrate the construction with the bass traping, broadband absorber, diffuse, ceiling/cloud, superchunks/cornertrap etc? I mean can I build the one frame for soundproofing and acoustic treatment?

Most often it is easier to build your room/house first, and then frame in the acoustic treatments. Perhaps something like this, then? Aloha 8)

kendale wrote:

Aloha and welcome to the forum,

That is correct, the ratio is before treatments. L.W. Sepmeyer Height Width Length 1.00 1.14 1.39 3m x 3.3528m x 3.9624m (9’8” x 11’ x 13’4”)

Kendale, glad to have you helping me........thanks..... Why I have different ratio and results? how to calculate ratio? 3m x 1.14 3m x 1.39 ???

Yes it is okay to put a window between the speakers, however it will affect your isolation, especially when open.

I don't think play any audio when the window open. Just make sure morning fresh air change the "last night air".. How about the reflection, because I plan to have speakers on stand too.... Put a gordyn will help when mix?

Aloha,

Kendale, glad to have you helping me........thanks..... Why I have different ratio and results? how to calculate ratio?

Sorry, let me check my calcs again as I don't usually work in metrics. 3 Metre(s) = 9.842519685 Feet 3m x 1.14 = 3.42 Metre(s) = 11.2204724409 Feet 3m x 1.39 = 4.17 Metre(s) = 13.6811023622 Feet Metric conversion - http://convert.french-property.co.uk/

How about the reflection, because I plan to have speakers on stand too.

You could try hanging some heavy drapes/curtains in front of them during tracking/mixdown.

Put a gordyn will help when mix?

What exactly is a gordyn? Aloha 8)

Sorry......Gordyn is in mylanguange....it's a curtain....:D About framing.... How to design the frame for isolation and treatment? Same frame? or should I build the isolation wall/frame first? and the back-corner... is that corner 60 deg? same function with the front corner? bass trap? superchunks type? Thanks lot kendale....

Aloha,

About framing....How to design the frame for isolation and treatment? Same frame? or should I build the isolation wall/frame first?

How much isolation do you need?

and the back-corner...is that corner 60 deg? same function with the front corner? bass trap? superchunks type?

The rear corner traps are bass traps @ 45 degrees and are built like this - http://www.johnlsayers.com/HR/index1.htm Aloha 8)

Kendale and others,

How much isolation do you need?

As you can see, the wall of my studio will be next to my neighbour room, and I also living near small airport. Almost in every hour in day small plan or helicopter take oof and landings. I also don't want to have bad relationship with my neighbour because late night mixing and re-amping. Then, how much isolation I need? much? I cannot tell you right now because the environment right now is crowded by truck and other building activities. It's a new housing complex.

maybe do some measurements of the outside/inside sound/noise levels during various parts of the day. also, set up something inside your proposed studio space (drum/bass, or recording with PA) and take measurements of the levels inside and out. make measurements inside on low frequencies as well so you can determine what frequencies from the airport and trucks are penetrating your building the most. based on this information, you can calculate how much isolation you'll need - both from a general level and frequency specific levels. low frequencies are generally harder to stop and if there is too much of it, it can get expensive to solve effectively (which is where the multiple time of day measurements come in handy since it may affect your hours of operation if the budget isn't available).

Gulfo thanks alot.... The house itself not yet built. It's a new housing complex. I can do Outside measurement, but the environment will be different when all house built. Now, every hours, builder, contratcors cars, trucks and heavy weight vehicle in and out the complex. My studio will be much for editing, re-amping, some vocal overdub (same room), and mixing and mastering.

ah... well if its not built yet, i recommend working with the designer and construction team to get as much isolation built in to the home itself while they're building it rather than try to retrofit it.