i'm an amateur audiophile... my listening room dimension is about 3.5m x 3.3m x 2.9m coz it is an almost square room dimension, i had suffered from an overhang upper bassnote... dont know its on which freq.... but it was on an upper bassnote specially cello en bass guitar what do i have to do? Dear ethan or someone,please help me....
Registered: 06/12/00
Posts: 5300
Loc: New Milford, CT, USA
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What you do depends on your budget. Start by seeing the Forum FAQ, linked at the top of the READ THIS FIRST post. There's also a lot of additional info on my company's RealTraps site, linked under my name below.
--Ethan
_________________________ www.realtraps.com The acoustic treatment experts
Registered: 02/04/08
Posts: 62
Loc: Santa Barbara, California
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Based on your dimensions, it looks like you have two modes at 50hz, and a mode at 60hz. And then every harmonic after that (IE 100, 150, 200...) But these modes could be slightly off depending on several variables.
To find your peaks you should download room eq wizard for free. Then you could step through the individual frequencies and listen for the peak. Or you can hook up a microphone or spl meter and actually measure your in room response. This software can also generate waterfall plots which can be helpful.
The truth is it doesnt really matter what frequency your bass peak is at. If it is midbass then you dont need as many panels, but more panels will only help. You could just put up as many rigid fiberglass panels as you can--as thick as you can. The typical recommendation is to stack 2 owens corning 703 4" thick 2'x4' panels across every vertical corner. Just buy a package of the panels and wrap them in burlap or any other material that you can easily blow air through. For looks and extra support you might build a wood frame for the panels. Instead of the fiberglass panels, you can also use Roxul, Ultratouch cotton insulation, or any mineral wool type product. The total cost could be less than $200.
Like I said the more panels you use and the thicker the panels are the better off you are. Even 4" thick panels dont absorb well at 50hz. So in a small room you just have to decide how much space you are willing to give up. My main problem in my small room is getting something that will work but wont look to overwelming.
