ᐅ Issues with Lino Acoustic Panels

You can minimize the visual flickering with the following measures without losing the acoustic benefits. The basic idea is to reduce the contrasts or increase the distances between contrast changes.

• If you paint the gaps white, you will get the first relief; the grooves will appear less dark and have less contrast.
• You can also use lighting to reduce contrasts.
• Covering with an acoustically transparent fabric would help.
• You can also stain the wood dark.
• It might also help to fill only every 4th or 5th groove with wood to break up the pattern.
• Try to see if breaking the pattern with horizontal lines works; if it does, this is an easy solution to implement.

Sealing the structure with non-acoustically transparent material takes you back to square one.

Maybe try switching your vision from digital to analog or adjusting the shutter speed.

I also considered painting. The wooden slats rest on MDF. Between every two MDF beams, there is black felt. I’m not sure if painting would work well in that case. Covering it with fabric seems more feasible to me. I can also imagine filling individual grooves with wood. That would probably need to be done by a carpenter.

What I don’t quite understand is this: if there wasn’t a door hanging there and the wall was simply bricked up, would there still be an echo? I don’t see the difference between a wooden door (which is no longer hollow due to the acoustic element) and a masonry wall (made with hollow blocks). I was really surprised that the acoustics became so poor.

You can also choose elements with wider ribs, so less delicate. Ligno now even offers a 3D texture, which I find more subdued. Ligno actually warns against too short seating distances with certain decors, as they can cause visual discomfort.

Bertram100 schrieb:

What I don’t quite understand: if there was no door hanging there and the wall was simply bricked up, would there still be an echo?

Echoes and overlaps are always a matter of room geometry combined with hard reflections. If the length, width, and height of a room have unfavorable proportions, audible frequencies (which then have a corresponding wavelength) can build up. There are essentially two measures to counteract this:

• the energy of the frequency is absorbed (damping)
• the energy of the frequency is scattered (diffusion)

You have broadly applied both measures in your construction (felt and grooved texture) and have apparently achieved the desired effect (this would hardly have helped with low-frequency standing waves). A closed wall would probably have presented the same problem—unless you had placed a well-stocked bookshelf in front of it.

guckuck2 schrieb:

You can also choose elements with wider webs, so less delicate. Ligno now also offers a 3D texture, which I find calmer.
Actually, Ligno warns with certain decor options about seat spacing that is too short, because otherwise it causes issues.

Well, buying elements again is not an option. That's too expensive for me.