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Acoustic treatment

I want to build my own bass traps and was wondering if there are any other alternatives to fiberglass and rokwool. Foam is not a consideration as I don't believe it has the necessary qualities for absorption. I have heard of cotton batting, does anyone have experience with this material. The idea of fiberglass makes me itch just thinking about it, but I'm resigned to using it or rokwool if that's all I have.  Please make suggestions and let me know your experiences.

Thanks
Mike
zardozmike
bdp24's avatar
bdp24
9,412 posts
 
@karl77, I use those pads to damp the high-frequency ring of my drum heads. ;-) Makes 'em sound like Levon Helm's, low and "thumpy".
mahgister's avatar
mahgister
12,536 posts
 
Thanks to Geoff remarks about Helmhotz resonator... I completed the installation of 8 carafes and varied bottles with different aperture with different tubes of my own making inside, and different level of water to discover the right one and I must say the effects are astounding on all counts...And at no cost...All of you read about that and think,it is not necessary to pay anything, very simple to inplement if you try and trust your ears...
theaudiotweak
2,769 posts
 
Let one or more contact a wall surface and hear what happens. Tom
mijostyn's avatar
mijostyn
8,175 posts
 
Ok Geoffkait here we go again. Show me solid objective evidence that tube traps work. Before you start spending other peoples money you have to be full of more than BS beside not knowing how to manipulate the math behind the Helmholtz Resonator. And, don't give me manufacturers BS either. How are you going to locate standing waves in a room and exactly at what frequency? What about comb filtering? In the context of what type of loudspeaker?
mijostyn's avatar
mijostyn
8,175 posts
 
IMHO the only rational for tube traps is that a lot of people make money on them.
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