Author Topic: Damping panels  (Read 463 times)

Offline Nicholas

Damping panels
« on: February 21, 2020, 02:06:52 PM »
Good afternoon gents,

I found this quite interesting (from Troels), has anyone tried this with any success?



I would like to make some panels soon and just looking into DIY effort / cost vs result / efficacy.

Online GoodEnoughGear

Re: Damping panels
« Reply #1 on: February 22, 2020, 08:42:52 AM »
Would be nice to see some measurements before and after to understand what effect they do have at what frequencies. I respect Troels but this is a bit of a crapshoot without more data IMO.
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Offline Curlycat

Re: Damping panels
« Reply #2 on: February 22, 2020, 09:14:39 AM »
Here is another example of the use of towels as sound-absorbing panels.

https://www.youtube.com/watch?v=pABvTWSxOes
I have realized that the past and future are real illusions, that they exist in the present, which is what there is and all there is.  Alan Watts

Offline Timber_MG

Re: Damping panels
« Reply #3 on: February 22, 2020, 12:17:55 PM »
That youtube test doesn't say much about absorption other than that "professional" socalled absorption foam is fairly ineffective. The reflection of those panels will have been included in the simple test. The towel will have contributed a fair bit to reflection as a limp mass and would have somewhat limited absorption at high frequencies

Offline Michon

Re: Damping panels
« Reply #4 on: February 22, 2020, 01:06:05 PM »
I would rather stick to rigid fiberglass:

https://ethanwiner.com/acoustics.html

Offline Nicholas

Re: Damping panels
« Reply #5 on: February 24, 2020, 08:01:04 AM »
I would rather stick to rigid fiberglass:

https://ethanwiner.com/acoustics.html

Thank you Michon, some valuable info in that article, perhaps I will investigate further in that direction

Offline bbe22

Re: Damping panels
« Reply #6 on: February 24, 2020, 10:17:52 AM »
Hi Nicholas
this (local) product line might be of interest
                                                     https://autospec.co.za/productmedia/britstextiles/brits/acoustisorb.html

Offline greatwhite

Re: Damping panels
« Reply #7 on: March 24, 2020, 03:19:33 PM »
I would rather stick to rigid fiberglass:

https://ethanwiner.com/acoustics.html

I'm not in the audio acoustic damping for audio applications, but fibreglass, rockwool are the gotos for many folks in industrial sound insulation - a lot cheaper than towels, and I would have thought significantly more effective, but in the absence of data, who knows...

Offline greatwhite

Re: Damping panels
« Reply #8 on: March 24, 2020, 03:30:57 PM »
Another thought - while cosmetically pleasing, the wood surrounds are another 'reflective' surface - not as bad as the probably plastered surface it is likely in front of, but not as good as if the whole frame had being covered.