
Glenn Kuras
Full Audioholic
well that would just be to easy now would it not?
Glenn
Glenn
Ethan you just love poking that stick now don't you!Ethan Winer said:Gerry,
> I believe all of us are more interested in encouraging your participation than complicating your life. <
Well stated, thanks. In the end we all agree on the big picture, even if it's fun to chat endlessly over how large a physical area EQ can reduce ringing.
--Ethan
There are discernable changes. Some (LF) waves go through the wallboard and rebound on whatever's behind it - concrete, other wallboard, whatever. Putting absorption in there eats some of the energy, decreasing that particular resonance. Insulation also changes how much the wallboard can freely vibrate, and since sound travels at a different rate in wallboard than air, that reduces another source of potentially resonant sound, with its own set of frequencies.Vaughan Odendaa said:I told him that the resonating frequencies of any room are determined by it's dimensions which is pretty much one of the most fundemental principles of how sound waves work as it pertains to rooms.
Now he said that if you put insulating material in the walls that the resonating frequency can change. I was like, wtf ? The resonating frequency can't change based on insulation material because the actual room dimensions haven't changed. I mean, duh.
What do you guys think ? Agree, disagree ?
--Sincerely,
The primary modes - the fundamental resonant frequencies of the air betweenthe walls - won't change. Some less obvious stuff does. Maybe he was thinking of the resonant frequencies of the walls themseves; those would change.Vaughan Odendaa said:My friend has insulation material in a wall and I explained to him that that insulation would not affect the fundamental room resonances. He didn't understand that logic and insisted that the resonant frequencies would change because of the insulation material.
I wouldn't worry Vaughan as your understanding of the matter is correct.Vaughan Odendaa said:Just when I thought I had a very good grasp on this then something comes along and messes it all up.
Yes, do this...Vaughan Odendaa said:I guess the only way to prove things is just to measure his room and show him the results...