Hello,
First of all I'd like to say how great and helpful this forum has been so far. Amazing reads. I understood my previous two acousticians were not heading in the right way.
My budget for the acoustic treatment is around 15000€ without counting the electricity and HVAC system
The studio space is located in an unfinished house which is out of town in Belgrade, Serbia, in a very calm area with little to no cars passing by, but strong winds and rain do tend to occur.
Here are some pictures of the site, floor plans, 3D models and a short video:
Ground floor plan:
The CR (26.4m2 and 3.5m high) is situated in the centre and the LR (63m2 and 5m high) is right in front of it.
Second floor plan:
Here's a quick video: http://www.mediafire.com/watch/006wu7dv ... G_5019.m4v
The control room, live room and the rest of the house are all on separate foundations. The gap between the foundations is 5cm.
The inner walls of the control room are 25cm thick concrete blocks filled with sand, then there's a 5cm air gap with Knauf KR P, then a 20cm thick regular clay block. All the walls have armed concrete poles.
The front of the control room is open towards the live room right now, the space is 220cm high and 4m wide. The front wall of the CR you see in the house plans was a bad idea to have the glass shaped like that.
The Live Room walls are also 25cm thick concrete blocks filled with sand and concrete poles. The rest of the house is made out of regular construction clay blocks and concrete poles.
What I'm really pissed about is that if I create a second leaf in my Live Room for insulation I will end up with a 3 leaf system between the LR and CR, and between the LR and Living Room located in the second floor right above the CR. What to do there? Are the concrete walls in the LR enough for insulation?
The floors on the ground floor are made out of 20cm reinforced concrete foundations laying directly on the ground so by doing some research I guess there is no need to float any floors since earth is acting as the damper for it. But I do need to add more concrete slab to level the floors since the current slab is not levelled properly at all. It would be impossible to put wooden or laminate floors as it is now. Since this has been proven not to cause any vibrations at two of my friend's studios I was thinking about putting 3cm of hard industrial floor styrodur as thermal insulation on top of my foundation slab and then pouring 15cm of reinforced concrete to level the floors properly. What do you advise?
The slab separating the upper and lower floors is 15cm of armed concrete and sadly it's resting on the inner leaf floors of the control room. I want to isolate the upper floor from the CR as much as possible since my family will be living there. I'm guessing properly floating the floors on the top floor would be an option as to create a two leaf system or is there a better or cheaper way?
The ceiling of the Live Room is 25cm of reinforced concrete, but there won't be any people living on top of it.
A HVAC has been taken into account. The company that is doing the ventilation project proposed to place the machinery in the attic which is two floors above the Control Room, then enter the control room and live room from their respective concrete ceilings. But wouldn't it be better if the machinery was on top of the LR but decoupled and insulated properly? This way my apartment at the second floor would have more space for other things.
More info in my second post.
Studio design, need help [edited]
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Scavneck
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Studio design, need help [edited]
Last edited by Scavneck on Sat Sep 05, 2015 10:00 am, edited 1 time in total.
Marko
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Scavneck
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Re: From the ground up in Belgrade, Serbia
I have started doing some sketchup drawings in order to start understanding acoustics more and to be able to show people where I'd like to go visually with the studio. I think RFZ is the way to go. What do you think?
My Geithain RL901K require the listener to be at least 2m far away and 4m maximum. They go down to 25Hz. I mix a lot of metal music and pop music that's why I chose them for the low end. I don't know exactly how loud do I mix in db because I didn't get a meter yet but I do check my mixes by pushing the loudness up for a few minutes to see if the mix is too aggressive when loud. So I'd like to keep them as my only speakers for mixing and mastering. I have a pair of NS10s but I don't think I'll ever be using them for something other than doing some quick checks.
For starters here is my horizontal tracing, the areas where rays are going out the room represent the areas with absorption only (I used http://www.amray.andymel.eu for tracing):
I've "put the ears" around the 38% position, used 30 degrees angles for the soffits, put the speaker (Geithain RL901K) axes at 120cm height, made sure the soffits are more than double the size of the speakers, but I didn't quite get the 2/5 soffit rule so I didn't try to use it yet, is it 2/5 towards the centre of the room or towards the side walls?
Now what I found interesting is that by tilting the side walls by 12 degrees I find the graphic looks pretty clean around the 38% position, but it required broad band absorption before the slat resonator came in in order to delete first reflections in my face, but when I tilted the side walls 20 degrees I still eliminated first order reflections but now without relying on absorption, but the reflecting waves seam to be a lot more busy in the room. In both back wall variations. So am I assuming right that in my case 12 degrees with absorption works better?
About the rear wall, I haven't yet read about diffusers but my room should be large enough to put a diffuser there right?
Looking at this first reflection from the back wall, should it be treated with absorption only at that point or a diffuser or slat resonator should take care of it? The ray comes 4,97ms after the direct sound from the speakers.
Also looking at the back wall, the part that is symmetrical to where the CR door is (marked red), should it mimic the door passage or is there something smarter I can do? Maybe open a different passage for the door on the walls if this position is too problematic?
My Geithain RL901K require the listener to be at least 2m far away and 4m maximum. They go down to 25Hz. I mix a lot of metal music and pop music that's why I chose them for the low end. I don't know exactly how loud do I mix in db because I didn't get a meter yet but I do check my mixes by pushing the loudness up for a few minutes to see if the mix is too aggressive when loud. So I'd like to keep them as my only speakers for mixing and mastering. I have a pair of NS10s but I don't think I'll ever be using them for something other than doing some quick checks.
For starters here is my horizontal tracing, the areas where rays are going out the room represent the areas with absorption only (I used http://www.amray.andymel.eu for tracing):
I've "put the ears" around the 38% position, used 30 degrees angles for the soffits, put the speaker (Geithain RL901K) axes at 120cm height, made sure the soffits are more than double the size of the speakers, but I didn't quite get the 2/5 soffit rule so I didn't try to use it yet, is it 2/5 towards the centre of the room or towards the side walls?
Now what I found interesting is that by tilting the side walls by 12 degrees I find the graphic looks pretty clean around the 38% position, but it required broad band absorption before the slat resonator came in in order to delete first reflections in my face, but when I tilted the side walls 20 degrees I still eliminated first order reflections but now without relying on absorption, but the reflecting waves seam to be a lot more busy in the room. In both back wall variations. So am I assuming right that in my case 12 degrees with absorption works better?
About the rear wall, I haven't yet read about diffusers but my room should be large enough to put a diffuser there right?
Looking at this first reflection from the back wall, should it be treated with absorption only at that point or a diffuser or slat resonator should take care of it? The ray comes 4,97ms after the direct sound from the speakers.
Also looking at the back wall, the part that is symmetrical to where the CR door is (marked red), should it mimic the door passage or is there something smarter I can do? Maybe open a different passage for the door on the walls if this position is too problematic?
Last edited by Scavneck on Sat Sep 05, 2015 10:08 am, edited 1 time in total.
Marko
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Scavneck
- Posts: 14
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- Location: Belgrade, Serbia
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Dequa47
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Re: Studio design, need help [edited]
These designs are awesome dear. I am also looking for some designs and reviews on best [SPAM REMOVED]. Please suggest me something helpful. So that, I will not end up investing my money at some wrong place.
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mattsal
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Re: Studio design, need help [edited]
awesome stuff! posting to follow the thread