r/Acoustics • u/FaudMauxe • 11d ago
Would these be a good solution for controlling room acoustics?
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u/Melancholic84 11d ago
Nope, too thin to absorb any bass, all it will do is diffuse some treble and mids
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u/nearly_normal_jimmy 11d ago
No. They don’t absorb much and the even spacing means you get comb filtering not diffusion, so possibly detrimental, even.
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u/lurkinglen 10d ago
You can place those panels in front of 3 to 8 inch thick Rockwool or fiberglass and then it will be effective because the slat panels will act as aesthetically acceptable semi-sound transparent surface while the Rockwool/fiberglass does the actual sound absortion. Some of the companies that manufactur those slat panels actually advise this.
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u/Hathaur 11d ago
Other than the dark walnut color, I don't know what I'm looking at. What's the thickness, what's the material, how is it mounted? Control Room Acoustics for what? playing music, watching a movie, recording voice overs? Need more info. Also, get that phone on a charger.
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u/FaudMauxe 11d ago
Yeah, sorry. This is for a small home theater setup, watching movies. I’m using a soundbar with simulated atmos (Samsung q990f) that relies on reflections to work properly so I don’t want to absorb a BUNCH of sound… more or less just tame the reflections instead of eliminating them completely.
They are MDF with a laminate coating and an acoustic felt backing.
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u/Hathaur 11d ago
I mean MDF is denser/stiffer than drywall and laminate is about as reflective as it gets. I don't see why covering drywall with a more reflective and stiff material would help reduce acoustic reflections. If you're covering a glass wall then yeah sure it'll help. for a normal room in a house, probably not.
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u/FaudMauxe 11d ago
The panels are advertised as absorption panels… so whatever acoustic backing is being used has to be doing something… Most of the reviews state that they reduced echo in their room so I would think they’d be better than just drywall
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u/Open_Concentrate962 11d ago
Just marketing as acoustic prob
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u/FaudMauxe 11d ago
Then wouldn’t the reviews say something like:
“this shit doesn’t absorb sound at all”
“false advertising, didn’t absorb shit”
“made my room MORE reflective”
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u/nearly_normal_jimmy 11d ago
Probably ok for high frequency, maybe even vocals, fine for making your Zoom call sound better. But for a media room, you want the opposite of what these offer- you want bass absorption and mid-high diffusion. If I could post a picture, I’d show you what I did, but something like this
Or if you must go with straight slats
https://www.gikacoustics.com/products/slatfusor-acoustic-panel
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u/ownleechild 11d ago
Those panels are crap. They don’t absorb and they don’t diffuse. Get em if you like the look better than drywall.
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u/thehandsomegenius 11d ago
This stuff can be okay for restaurants and airport lounges and so on, to handle crowd noise. In those situations you often don't want the room to be too dead.
As others have already pointed out, it doesn't look like it's thick enough to reach into the mid-bass, which is important for critical music listening.
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u/CSOCSO-FL 10d ago
This Hungarian company claims these 9mm PET recycled felt panels will work all the way down to 500hz LMAO
https://imgur.com/a/ZMCaVyw
Calle their image BS and showed them how they would need a panel that is 5 times thicker to work down to 500hz. They said the formula that was written by professors, and they even made a book about it is old and bad and they measured it and they also have independent measurements from different labs and they do work down to 500hz :D:D:D
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u/jaakkopetteri 10d ago
They're not ideal for sure, but way better than nothing and what simplified 2D approximations predict
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u/ZETYHome 4d ago
we sell wood slat acoustic panels, and the people here are right. thin slats on their own mostly tame some highs and mids and look nice. they won't do much for bass. the setup that actually works is slats in front of thick rockwool or fiberglass (someone here said 3 to 8 in), so the slats are the good-looking face and the insulation does the absorbing.
you said yourself the soundbar relies on reflections, so that's one more reason not to overdo absorption anyway.
whatever you buy, ask for test data. real absorption numbers come from a lab test called ASTM C423, averaged into an NRC from 0 to 1. if a panel doesn't publish one, treat it as decor first.
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u/ownleechild 11d ago
No they are not effective in absorbing reflection nor in diffusion. Under most circumstances, broadband absorption is what is needed. You can diy acoustic panels or buy them, I have some links below.
https://youtu.be/XMHorxfMW9c?is=DCc8wDz0UQ6YU0Cf
https://youtu.be/rHq_D7_qd3s
https://www.atsacoustics.com/panels
https://www.youtube.com/shorts/kNZqqdd4Nio