Acoustic treatment advice for my new studio needed please

[acappa]

Hey fellas!

As many of you should know, I´m creating my first "professional" studio, now I´m recording in a rehearsall room.
It´s not big, just 12m2 for the recording room plus 14m2 for the control room.

And now I´m on the acoustic dilema, I know I have to do some treatment, but I´m on a tight budget. Let me show you a simple pic of both rooms.
http://dl.dropbox.com/u/4255918/Valdesangil_Plano.pdf

I´m plannig to build some absorvers made of glassfiber with a wood structure, covered by fabric, some diffusors and some bass traps.
Maybe I´d get 2x http://www.thomann.de/es/the_takustik_sa2_ras_schallabsorber.htm

4x http://www.thomann.de/es/the_takustik_sd2_rasdiffusor.htm

What would be your choice on the cheap side???
What would be the most important thing to watch in the control room, the listening spot???
Do I need diffussors in the recording room??

Thanks so much!

 

[John_C]

EDIT: to clarify, i'm talking about the control room here

Seeing as this is quite a serious project I recommend some reading first.

Anyway, edges and particularly vertex's are the most important areas for bass trapping, however it's worth remembering that there are 12 edges and 8 vertex's to a normal room and they're all important. Treating the edge where ceiling meets wall is just as effective as wall meets wall. Treating vertex's is the most effective for bass

Think about first reflections, create a zone in the room with NO first reflections if at all possible. Sometimes reflections from the rear wall are ok, but only with proper diffusion. Don't forget that the ceiling and floor/desk/console are reflective surfaces.

Work lengthways in the room, there's a pretty good consensus that it normally just works out better that way.

 

[damas]

since it seems to be on a more serious side i also would suggest that you read a lot first.

here are some GOOD sites ..... IF you dont know them by now

http://www.hometheatershack.com/
http://www.hometheatershack.com/roomeq/
http://www.realtraps.com/

tbh even in germany diy traps are cheaper than the sold ones and more usefull. also there are some things to consider with speaker height placement regarding room modes and what not

 

[Jarkko Mattheiszen]

In a small room like that (I'm in a very similar one) the most important thing IMHO is to take care of the bass frequencies and early reflection points without killing the highs. I'd suggest you start with building superchunks in every corner of the control room and building some brodbands and bass traps yourself from 2" and 4" rockwool os similar material. Don't just grab the material that's easily available and cheap or you might end up spending lots of money in absorbers that do little good. I'm not quite sure what's the availability in Spain, but Paroc COS-5 is often a good choice if it's available. When you have taken care of the corners and the early reflection points (remember the ceiling!), you can start considering whether you need diffusors and other elements such as a Helmholtz resonator (which can be a pain in the ass in a small room, as it will probably need to be tuned rather low).

Check out http://www.johnlsayers.com for some excellent information, and if you're adventurous, grab a copy of BBC's Guide to Acoustic Practice (should be freely available on the internet). If you want advice construction-wise or want more detailed descriptions of what I've done in a similar situation, hit me up on FB or MSN

 

[John_C]

I recommend reading "The Master Handbook of Acoustics", a brilliant introduction to acoustics from a practical perspective

 

[jipchen]

+1 to what the other guys said, but I would consider paying an acoustician / studio-designer to do the planning. It will help a lot, he will give you practical as well as theoretical tips, will tell you where to buy the material cheap, you will definitely save money and the room will be better sounding afterwards. You can only gain from his knowledge. And a consultation won't be very expensive either.. if he designs the whole room it's a bit more than for advice-only but 100% good invested money. You will save time, nerves and money