|
|
|
|
|
|
by ResidentSleeper
2403 days ago
|
|
|
Materials absorb different parts of the frequency spectrum with varying efficiency. Regular earplugs are made to simply stop as much sound as possible and hence there's a lot of muffle at the top of the spectrum (that's easiest to achieve - cover your ears!). Concert earplugs are more carefully designed to absorb the entire spectrum as uniformly as possible. |
|
|