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Advice on first bedroom studio
Old 5 days ago
Here for the gear

Advice on first bedroom studio

Hi all!

So I've been teaching myself the basics of acoustics over the past couple of weeks and I THINK I've collected the relevant information to start setting up a basic bedroom studio.. But before I start to invest in it I was was wondering if I'm on the right track or if I've missed anything crucial? I would really appreciate any help!

So it's just going to be a room for mixing, I won't be using it to record live instruments (apart from perhaps the odd vocal)

The dimensions of the room are are follows:

L: 524cm
H: 329cm

Here are the room modes:

So as expected, my main problems will be below 100hz..

So the solve this I'm planning to building the following and placing them in the high pressure zones in the above room modes 3D model and using the mirror technique:

• 4x Bass Traps
220mm Porous Absorbent, 3000 Pa.s/m2
400mm Air
Rigid backing
Normal incidence

• 2-4x Broadband Acoustic Absorbers
120mm Porous Absorbent, 3000 Pa.s/m2
200mm Air
Rigid backing
Normal incidence

The material I will be using is called THERMOHANF PREMIUM (3,0 kPa•s/m2)

It is a hemp alternative to Rockwool. I have chosen this for health and environmental reasons.

If you compare them on the porous absorber calculator, the bass traps seem to treat 20-125hz with an absorption coefficient of 0.4 to 0.9 respectively, and the broadband absorbers seem to fill in the "dip" that occurs 200-300hz. Is this a correct way to choose the right absorbers that will work together?

After adjusting monitor height and position and moving my listening position to around 38% of the rooms length (just outside that first mode) I will use the mirror technique to place two broadband absorbers left and right of the listening position. The bed will be placeD at around the 40-50% mark for now however there is a possibility I will build a mezzanine level for the bed on the back wall but we can ignore this for now..

The back wall seemed to be a bit of an issue as I'm missing a corner due to the door, however this irregularity in the room shape may prove useful as I've come to understand?

So I will just treat the trihedral corners in the whole room with some basic foam corner bass traps leaving the big hemp bass traps for the dihedral corners in the image below. (I know, the slightly off centre window hard to look at!)

Old 4 days ago
Measure first.
Old 4 days ago
Here for the gear

Could you please elaborate?
Old 4 days ago
Due to windows or irregularities in the room structure, you room modes could end up quite a bit higher or lower than what amroc suggests. Plus, with a measurement, you may find that you had your speakers set up too bright/too dark etc. You'll also gain the ability to compare what treatment does in your room.
Old 4 days ago
Lives for gear
Starlight's Avatar

Originally Posted by kuher View Post
Could you please elaborate?
As you are new to the forum I wonder whether you understand what Johann means when he says ...

Originally Posted by johannburkard View Post
Measure first.
There is a sticky topic called Measuring Room Acoustics. However, as the images are missing, you might find this one more helpful: How To Calibrate and Use REW To Test and Tune Your Room Acoustics.
Old 4 days ago
Here for the gear

Thank you both for the advice!

I will look into REW
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