11m2 control room? Placement of acoustic elements

[sat159p1]

Guys, I need some advice building acoustic for... small control room. 11m2 (2,7x3,9 x 2,4m height). Deafinitely it needs to sound like a "good room" I mean, not dead, but not a bedroom too.

Without standing waves and echo. Just quiet natural sounding room.

I once was in a great studio when they had control room with 3 walls of old books from floor to ceiling (imagine an old library). Besides a great smell of it, sound of the room blew me away, and they had only some foam on ceiling other than books.

I will mix (and maybe master) thru JBL 4311's monitors.


So my questions are

1) Where and what materials (let's talk about home made or budget ones?) should I use on the walls and ceiling to sound neutral?
2) Do I need to cover the window (it's on the shorter side)?
3) What you suggest as a place to sit and listen? On horizontal or vertical side?


Gregory

[Ethan Winer]

It's not possible to make a bedroom sound like a "good" room that's much larger. With a lot of acoustic treatment you can do pretty well, but it requires a lot of diffusors and it still won't sound like Studio A at Avatar.

The questions you asked are pretty basic - which is fine! - so here's the right level of advice:

Acoustic Basics
How to set up a room
Early Reflections

--Ethan

________________
The Acoustic Treatment Experts

[sat159p1]

Thank you, I should have studied it before I posted
By the way, does an of you had the feeling of "good sound" in places full of books?

[sat159p1]

OK.

Reading a lot of articles I draw my room and placed the materials:




Here's my room: 2,7x3,9 x 2,4m height
RED, YELLOW - Diffusors QRD
GREEN - thick material curtains from ceiling to floor
BLUE - pyramid foam 1 sq m.

(Black sqares are monitors, other black objects are listener position and desk)

On the ceiling - 3x pyramind foams 1 sq m each
On the floor - tiles, but covered with thick carpet.
On the corners - little foam bass traps.


Is it OK with everthing for a start? Or should I change smoething

[Jens Eklund]

Originally Posted by sat159p1

OK.

Reading a lot of articles I draw my room and placed the materials:




Here's my room: 2,7x3,9 x 2,4m height
RED, YELLOW - Diffusors QRD
GREEN - thick material curtains from ceiling to floor
BLUE - pyramid foam 1 sq m.

(Black sqares are monitors, other black objects are listener position and desk)

On the ceiling - 3x pyramind foams 1 sq m each
On the floor - tiles, but covered with thick carpet.
On the corners - little foam bass traps.


Is it OK with everthing for a start? Or should I change smoething

Either I don’t understand this illustration or It’s fundamentally wrong …

[sat159p1]

What you don't understand?

[Jens Eklund]

First of all, Place the desk against the window wall and the monitors on either side of the window (if it is a window …) and yourself in front of the desk (as usual).

This room is a bit too small for proper diffuser implementation. Maybe if using 1Ds in a clever way it might work. You don’t want early reflections reaching the sweet spot to soon. Approx. 20ms of ISD (Initial Signal Delay = time between direct and first reflex) is a good aim but it will be close to impossible to achieve in such a small space. Broadband absorbers should be used on surfaces that otherwise would give a reflex within this time. If you have (… you most definitely will …) bass problems, read up on room modes and how to deal with them.


Sincerely Jens Eklund

[sat159p1]

Thank You!

I know that this is a small place and it will be hard to make it right.
Could you tell me why I must it 180 degrees? If the curtains are behind my back on the one and the other side? Is it a difference what is behind that?

Could you please tell me what is DS1?

[Jens Eklund]

Originally Posted by sat159p1

Thank You!

I know that this is a small place and it will be hard to make it right.
Could you tell me why I must it 180 degrees? If the curtains are behind my back on the one and the other side? Is it a difference what is behind that?

Could you please tell me what is DS1?

This is what I would do:



Sincerely Jens Eklund

[sat159p1]

Thank You!!!

These are getting to clear now

I've posted also some mis-information in the first post I think, because I wanted to do some little mastering there too (so that's why my drawing included a lot lore length between speakers and the listener).

So, with different speakers (not near-field monitors), I should sit more at the back? Let's say a out 3/4 of the room?

[Jens Eklund]

Originally Posted by sat159p1

Thank You!!!

These are getting to clear now

I've posted also some mis-information in the first post I think, because I wanted to do some little mastering there too (so that's why my drawing included a lot lore length between speakers and the listener).

So, with different speakers (not near-field monitors), I should sit more at the back? Let's say a out 3/4 of the room?

In a room of this size; no.