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Post by Hexspa on Feb 7, 2017 20:50:39 GMT
Hey bobc. I thought when you found the bad vibes you meant me. I was about to flip a table. heh I wonder if spray gluing a rigid absorber would help your doors to function similarly to how adhering a thin membrane to a panel would. Yes, plywood tops and bottoms are design specific and offer no acoustic benefit. My design is without that but uses paper laid loosely on top and bottom just to keep material from falling out. The important detail to uphold when using fluffy insulation is that it will compress under it's own weight and compress even more when stacked. Besides, it's structurally unstable for that reason. To the point, you have to build in support layers: wire, netting etc.; in this way you'll keep your fluffy, well, fluffy and in it's most optimal state. The point of broadband absorption is to minimize the effect of the walls. In some cases, the room can help support your music and make it sound perhaps better than no walls. It depends on the modal distribution. If you haven't, Rock posted a calculator - amroc.andymel.eu/?l=23.83&w=13.33&h=8&ft=true&r60=0.6 - I advise checking it out. The bonello and Bolt-area graphs assist you in determining whether you have a so-called "golden" room; one that helps, as opposed to hinders, your music. The caveat is that since you have alternative geometry in your room that calculator may be of diminished benefit. Thanks, -m
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bobc
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Post by bobc on Feb 8, 2017 14:40:51 GMT
Hex, You are a bad vibe, and don't call me Fluffy!! ;0)
I put a bass trap on the door last night and a matching one on the opposite wall. I still get the feeling that I am sucking the life outa my room... You say add more bass traps... Sheesh... If I smack my thumb with a hammer and it hurts, I don't keep doing it till it doesn't hurt anymore. But, I'm going with your advice , for now. I still think I need diffusion/scattering...
I guess I just need to start learning some acoustics software and get what I need to start down that road... Even though my earz don't lie, I know what sounds good and what sucks and can even pick out the issues.. I guess I gotta learn how to diagnose and fix issues...
This weekend I am going to build some more bass traps for the corners behind the speakers.. Can't really do the back wall and maintain symmetry as there is a big cast iron radiator in one of the corners.
thanks for the help!
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bobc
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Post by bobc on Feb 8, 2017 15:32:26 GMT
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bobc
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Post by bobc on Feb 8, 2017 15:33:47 GMT
Left side
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bobc
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Post by bobc on Feb 8, 2017 15:34:33 GMT
Right side
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Post by Hexspa on Feb 9, 2017 12:56:36 GMT
That's awesome, Fluffy The panels look great and are in good locations. I'd advise for removing everything from the room besides your audio stuff, chair and panels then selectively adding it back in. Besides clutter being bad feng shui, it affects symmetry, can rattle and affects your acoustics in unknown ways to include imaging problems. That being said I can only imagine those panels helping your room. I wouldn't worry about the rear wall's absorption being perfectly symmetrical due to the radiator. Symmetry is more important in front of your ears and corner panels are more important than no corner panels. -m
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bobc
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Post by bobc on Feb 9, 2017 14:06:10 GMT
added 30" tall of safe N sound comfort batt triange traps behind the speakers last night at the knee wall.... There isn't gonna be room for me soon.
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Post by Hexspa on Feb 9, 2017 22:29:28 GMT
Who needs Fluffy when you have awesome acoustics
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bobc
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Post by bobc on Feb 9, 2017 23:20:48 GMT
If a tune plays in your room and your not there does it make a sound?
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Post by rock on Feb 10, 2017 3:34:53 GMT
IDK...But if your Amazon Echo Dot hears the TV news, it may order you a dollhouse and sugar cookies.
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Post by Hexspa on Feb 10, 2017 14:02:08 GMT
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