I'm nearing completion of basic construction of my control room. So far the only acoustic treatment I've done is to build bass traps on the roof similar the the DIY designs on Ethan Winer's website (
http://www.ethanwiner.com/basstrap.html ). Here's a picture looking towards the front of the room:
In my previous control rooms I treated early reflections by having someone run a mirror along the walls while I sat in the listening position. Where I saw the monitors in the mirror is where I placed some absorbative material, like 50mm (2") Tontine Acoustisorb (
http://www.tontinefibres.com.au/Data-Sheets/Acoustisorb/Acou stisorb-2-Data-Sheet.asp ). I also had thick velvet curtains drawn across the front wall. I'm just wondering, since now I'm trying to do things a bit better (but still DIY), is this still a valid approach for treating early reflections, or does it make the room dull in the process? I have quite a bit of 703 left over & thought of sticking it directly to the walls & covering it with fabric. An alternative I thought of would be to build something similar to Ethan's Mid/High frequency absorbers and placing them horizontally at ear level on both side walls. What do you think of these ideas?
The other thing I was thinking about doing (since reading posts on this forum) was to make porous bass traps for the front 2 corners of the room, probably 8' high & 2' wide made from 100mm (4") thick Tontine Acoustisorb & maybe hang some glasswool batts behind it. I could line the walls behind with 703 if that would further help. My thinking behind this was 1. more bass traps, & 2. it would help with symmetry of the room (you can see in the photo it is not quite symmetrical).
Any thoughts, comments or advice would be greatly appreciated.
Room dimensions are approx. 5.26m x 3.67m x 3.3m
Thanks,
Glenn