Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions.
Click here to have your audio equipment measured for free!
I don’t really need the benefits of diffusion with those slat absorbers. The slats are just for the looks.
But I don’t want the slats to have any negative effects on mids/highs.
Their main purpose should be bass absorption
I want to remind the reader to pay attention to the depth of glass wool behind the slats: 60cm. On a typical small listening room of 20m2 that will cause almost a 30% floor area reduction. Imagine the OP installing wall-to-wall cupboards on both walls!
I want to remind the reader to pay attention to the depth of glass wool behind the slats: 60cm. On a typical small listening room of 20m2 that will cause almost a 30% floor area reduction. Imagine the OP installing wall-to-wall cupboards on both walls!
The main problem is finding a good coverage material for the insulation material.
I thought of getting cheap 3mm felt but it’s hard to get resistivity values for it.
Fabric will probably not look as clean as something more rigid like felt
With glasswool I would more likely do 40cm of depth. For 60cm something less dense is better but all materials I found with this property are way more expensive than simple glass wool.
But yes, I would be fine with 40cm less room if the wall ends up looking good
I have a question about simulations like these - could you help? Allard & Champoux's 1992 equations have, I believe, proved themselves pretty accurate via empirical tests. But are they not based on a simple one-time pass-through calculation, i.e. SPL in on one side, minus SPL out on the other? But for room acoustics, aren't we dealing with three separate stages? I.e., SPL into the absorber, then some leakage through the wall, and then the remaining reflection passing through the absorber again, in the reverse direction. Can anyone elucidate?
With glasswool I would more likely do 40cm of depth. For 60cm something less dense is better but all materials I found with this property are way more expensive than simple glass wool.
But yes, I would be fine with 40cm less room if the wall ends up looking good
Membrane, Diaphragm & Helmholtz is much more efficient than using simple absorbent materials. No acoustician will even consider using a 60cm deep absorbent wall. On a usual size room the volume of just one of such an absorber will be around 9 m3 or a volume to store 9 metric tons of water!
Perforated acoustic panel (PAP System) Previous slide Next slide Perforated Acoustic panels to achieve a functional and customized acoustic treatment Description of PAP system (perforated acoustic panel) Perforated panels are the most economical way to get an acoustic treatment with a high...