[LAU] DIY acoustic absorbers?

Bob Andres bob at andresonline.net
Sun May 25 13:29:22 UTC 2014


Check out the DIY page at ATS acoustics.    For $72 I bought:Roxul
Rockboard 80, Mineral Wool Board, 2 Inch (6PK)

I built my own frames and covered with fabric from Spoonflower that I had
custom printed with images of favorite musicians, so the 2x4 panels look
like art.  They are spaced 2" from the wall.

The general rule of thumb is to stagger the panels and cover 50% of the
space with absorbers.

Sounds like you are almost there with the bookcase and carpet.  I'd add a 6
pack of panels to the other walls and ceiling and go from there.   Maybe
add a good subwoofer.

In my case I had a drum set against a live wall that I wanted to tame
before going deaf!

These did the trick.    I have one drummer that plays really loud --- I'
thinking of adding a few panels on the ceiling.



On Sunday, May 25, 2014, Gabriel Nordeborn <gabbe.nord at gmail.com> wrote:

> Hi!
> I recently moved to a new flat, and I've just got my studio properly setup
> in one of the rooms. Problem is, the room is rather horrible acoustically.
> As this is the room I've got to play with, I'm going to have to make the
> best of it acoustically.
> So, my question is about DIY acoustic absorbers. I'm most likely looking
> to build absorbers both for mid/hi-end (I'm thinking the classical rock
> wool ones you place spaced out a bit form the walls) and for the lower end,
> but I am very much open for suggestions. Here's some specs of my setup:
> - The room is roughly 3.60m wide, 3.40m long and 2.50m high. I think at
> least one wall is concrete.
> - My mixing position/monitors is in the middle of the front wall. I sit
> about 1.20m out from the wall.
> - My monitors are small, a set of Adam A3X (so 3" elements I guess). It
> basically gives very low bass response, so I can hear fairly OK down to
> about 80hz, rapidly declining down to 60hz where there's nothing left.
> - I am not terribly dependent on mixing at high volumes, if that matters.
> What I currently have is:
> - Two large bookshelves along the wall right behind my mixing position
> acting as diffusors. These go almost all the way up to the ceiling, and has
> stuff unevenly stacked at different heights/positions in the bookshelf.
> They cover 1.60m in the middle of the back wall.
> - I also have a fairly large carpet on the floor in the middle of the
> room. It probably doesn't do that much, but maybe it does a little.
> My question then is; are there any effective ways of acoustically treating
> this room? Of course, given the topic of the e-mail, I'm very much willing
> to do my own DIY solutions, if that's a viable option. What I have been
> thinking is doing what I mention above; classical absorber "panels", and
> bass traps.
> But, before I start anything, I'd very much like input from people who
> actually know what they're talking about (I'm looking at you on this list
> ;) ). So, does anyone have thoughts/suggestions for me? Any recommended way
> of doing this?
> Thank you very much for any help and any replies!
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