3 ms·
Similarly the 87% is impressive, but that translates to a difference of "only" 9 dB. The way our ears work makes me wonder if that is enough to make a differenc
by vanderZwan 4y ago
Similarly the 87% is impressive, but that translates to a difference of "only" 9 dB. The way our ears work makes me wonder if that is enough to make a difference for noise reduction (my earplugs say on the package they reduce sound by 32 dB, for example)
edit: of course, worst case it would still contribute passively to noise reduction
- Tade0 4y agoYesterday I walked along a busy road with a decibel meter app and as I went behind a sound-absorbing wall, the level went down around 10dB. The difference was significant and it felt as if the road was one block away.
- vanderZwan 4y agoRight, so it would still be less stress-inducing at least.
- pushrax 4y agoWorst case you just add more layers, like we do with sound absorbers now. If some kind of moth wing inspired metamaterial can shrink the width of broadband sound absorbing panels by 10x that would be quite useful still.
- vanderZwan 4y agoGood points, it hopefully will lead to metamaterials that are at least better than currents solutions
- thunderbong 4y agoDecibel is a logarithmic scale
- vanderZwan 4y agoYes, and also a relative scale like percentages are. A change of 87% is about nine decibels. If earplugs need to be 30+ decibels that makes me wonder if nine decibels is enough to have a significant impact (but another comment suggests it does)