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Author Topic: Diffusor dimensions for backwall of my new controlroom  (Read 29616 times)

Thomas Jouanjean

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #60 on: April 18, 2010, 10:01:15 am »

Constantin wrote on Sun, 18 April 2010 05:16

Hey Fran
Thanks for your comment.
I would be intrested of a meassurement of a professional buld room about 25m
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Thomas Jouanjean
Northward Acoustics - Engineering and Designs
http://www.northwardacoustics.com
http://www.facebook.com/pages/Northward-Acoustics/1062876633 71

Pro Audio Partners:
ATC Loudspeakers
FOCAL Professional Speakers

Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #61 on: April 19, 2010, 05:16:13 pm »

Thanks Thomas

It is not nessesary to link a measurement to a specific studio.
i am just intressted about a typical curve of frequency and reverbation in the lows, of some professional designrd and build studios.

i never learned acoustic, i just read books, and in the internet. so i have only my experience, and nothing to compare my results.

I don`t know where i am in the moment, so other measurments are a good guideline for finding out .
cheers
mika

AndreasN

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #62 on: April 21, 2010, 06:24:28 am »

Hi folks!

Would love to see some graphs as well. Especially time response graphs.

Mika, do you think you could post an energy time curve showing the first 200ms or so of your room?

Here's mine a few weeks ago: http://www.gearslutz.com/board/studio-building-acoustics/481 797-lede-room-haas-trigger.html
Specular Haas trigger to be replaced with more suitable diffusers, more reflections to be had overall, and so on. A work in progress. It will at least give the general idea of where it's heading.


Cheers,

Andreas Nordenstam
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Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #63 on: April 21, 2010, 07:01:06 am »

Hi Andreas
I can only offer an old ETC since REQ don`t work anymore on my Laptop, for some unknown reasons (maybe a JAVA update??)  
ARTA don`t offer ETC in Free Version so here is the old measurement.
The 5 ms peak is a old desk reflection which is not present anymore, and this measurment miss the perforated MDF housing of the rear Basstrap soffit, so only the the 3 little QRD`S give the impulse at 16,5 ms
IDT Gap is now 16,5ms without that deskreflection, or better said with less deskreflektion.

http://img682.imageshack.us/img682/2272/etcold.png

cheers
Mika

Thomas Jouanjean

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #64 on: April 22, 2010, 09:31:51 am »

Here's one. This was measured with a high sound pressure in the room.

I will not post ETCs because they are giving away too much info about how our rooms work.

This graph is pretty representative of what a bigger room with a big console (3.60/1.20m in size) can respond like.

The console usually messes things up pretty badly in the MF / HF, so we tend to preemptively compensate for it... *When possible*.

The consoles with the 'back' going all the way down to the floor (like some NEVE for ex) are also giving us quite a few headaches in the LF.

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Thomas Jouanjean
Northward Acoustics - Engineering and Designs
http://www.northwardacoustics.com
http://www.facebook.com/pages/Northward-Acoustics/1062876633 71

Pro Audio Partners:
ATC Loudspeakers
FOCAL Professional Speakers

Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #65 on: April 22, 2010, 11:48:41 am »

wow, that looks realy flat  Shocked
How big was that room? over 30m

Greg Reierson

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #66 on: April 22, 2010, 12:37:45 pm »

Thomas Jouanjean wrote on Thu, 22 April 2010 08:31

Here's one. This was measured with a high sound pressure in the room.


Any EQ in the chain?


GR
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Thomas Jouanjean

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #67 on: April 22, 2010, 01:16:42 pm »

Constantin wrote on Thu, 22 April 2010 10:48

wow, that looks realy flat  Shocked
How big was that room? over 30m
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Thomas Jouanjean
Northward Acoustics - Engineering and Designs
http://www.northwardacoustics.com
http://www.facebook.com/pages/Northward-Acoustics/1062876633 71

Pro Audio Partners:
ATC Loudspeakers
FOCAL Professional Speakers

Thomas Jouanjean

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #68 on: April 22, 2010, 01:22:06 pm »

Greg Reierson wrote on Thu, 22 April 2010 11:37

Thomas Jouanjean wrote on Thu, 22 April 2010 08:31

Here's one. This was measured with a high sound pressure in the room.


Any EQ in the chain?


GR


These are tri-amped speakers and we played with the level of each amp (LF, MF, HF) to have an overall balanced response. It was a bit 'curved' in the MF IIRC, so we added a bit of that. How much I don't remember.
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Thomas Jouanjean
Northward Acoustics - Engineering and Designs
http://www.northwardacoustics.com
http://www.facebook.com/pages/Northward-Acoustics/1062876633 71

Pro Audio Partners:
ATC Loudspeakers
FOCAL Professional Speakers

Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #69 on: April 22, 2010, 01:42:35 pm »

Quote:

This room is on the big side. About 42m

Thomas Jouanjean

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #70 on: April 23, 2010, 06:35:30 am »

Constantin wrote on Thu, 22 April 2010 12:42


Another question:
do you see any big problems with the peak in my ETC at 5 ms?
i reduced it about 5 db, but it is still there.

cheers
Mika


I think at this point in your project you should just listen. Numbers are important and you do well in keeping an eye on them and using them to get your room to the next level.

But now it's time to let your ears be the final judge.

Forget the ETC for now and sit down a bit, have a coffee and enjoy your nice work Smile

Do you like what you hear? Do you have a nice depth, stereo image, no particular sign of freq problems?

From what you say, I would say that all this seems fine and the numbers you show are very good.

So... Do some projects now! See how your mixes translate! If you feel something is wrong after a while, then go back to your drawing desk.

It's your own place. Take it easy Cool


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Thomas Jouanjean
Northward Acoustics - Engineering and Designs
http://www.northwardacoustics.com
http://www.facebook.com/pages/Northward-Acoustics/1062876633 71

Pro Audio Partners:
ATC Loudspeakers
FOCAL Professional Speakers

Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #71 on: April 23, 2010, 09:41:24 am »

Thanks for reply Thomas  Razz

I would enjoy to listen my new room, but in the moment i am in Hospital, so i have only the numbers to play with.
I just try to use the time here as much as possible, since my working time is very limited because of my helathproblems since 2008 Sad

Only good thing, is, that i have much time to read and learn.

cheers
Mika

Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #72 on: May 19, 2010, 07:03:28 am »

Sorry for no updates, but i spent all my time in hospitals, so i can`t work in the studio.

But i have some questions about the aircondition i plan to install.

I need to place the compressorunit of the doublesplit system on the roof over my recordingroom.
It is not allowed to install it at the outside wall.
So i need a good decoupling from the roof.
What is the typical naturalfrequency of a decoupled compressorunit?

i don`t know if i can easy go the agglomer way, since i have alot of this material in my storage, and i have no money to buy some additional sylomer.
My idea is to place some concrete blocks over Agglomer on the roof, and mount the compressor unit on top of this foundation.

The question is:
how much lowfreqeuncy isolation of this unit is needed?
Any experience with this?

cheers
constantin

Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #73 on: June 02, 2010, 05:37:52 pm »

There are no big news until now, but here are some before/after shots of the small recording room/vocal booth.
Not finished jet, but short before ready for use

View 1
in 3 building steps:
1.
http://img210.imageshack.us/img210/171/bild000o.jpg


2.

http://img180.imageshack.us/img180/3448/bild011k.jpg


3a

http://img514.imageshack.us/img514/3817/bild015m.jpg


3b

http://img38.imageshack.us/img38/4406/bild017f.jpg

View 2
1.

http://img411.imageshack.us/img411/9805/bild005e.jpg


2.

http://img121.imageshack.us/img121/4039/bild012t.jpg


3.

http://img72.imageshack.us/img72/2394/bild014t.jpg

and the view into the control room:


http://img205.imageshack.us/img205/9213/bild010x.jpg

i hope to be able to continue the work in 2 weeks, when i leave the hospital

cheers
constantin




Constantin

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Re: Diffusor dimensions for backwall of my new controlroom
« Reply #74 on: June 05, 2010, 03:52:40 pm »

Some better pics of the Control Room, where you can see the right colours and feel the vibe of the room.

I will make some mire pics, when i cleand the room, and install equipment.
cheers

http://img704.imageshack.us/img704/6136/regiefrontohneblitz.jpg

http://img121.imageshack.us/img121/5162/regieseiteohneblitz.jpg
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