Hi
i will try to give yiu a rough answer, but i´m not a real expert
When you first measure a not treated room , you have to save this measurements as a reference, with detailed dokumetation about the conditions.
Ethan wrote a nice
acoustic FAQ what all rooms need, so you can first start with broadband basstrapping an treating the first reflektionpoints. This treating require no "before measurements" because you will need it anyhow.
After this, or before, you can start to find the best Speakerlocation for your roomsetup. Please note that Speakerlocation is minimum as important as treatment.
I remember barefoot has wrote a exeltool for showing the effekt of speakerlocation to the freq response at the listeningposition, some time ago. The name was wallbounce calculator i think. It`s just a 2 dimensional calculator, but gives you a rough idea what happens at different locations.
After this you have to meassure again, and can compare your reverbation time and freq. response with the old room.
Now you can watch for leftover problems in the room.
francis already gave good advise how to find good places for tuned basstraps.
Quote: |
We absolutely hunt around the room with a hand held RTA (or SPL meter) looking for modal peaks. This helps in deciding where to locate bass trapping particularly if you're considering tuned traps...
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When your problems are not the bass (i don`t think so) you can continue with with other pannels or/and diffusion to adjust the room like you want it.
I hope you can understand what i mean. i have some problems with the language
cheers
Constantin