Even though STC and SRC suggest how effectively noise passes through diverse components, NRC (Noise Reduction Coefficient) measures how properly materials stop sound from reflecting (just how much sound they will absorb). The NRC is The share of sound that a surface absorbs (To put it differently, hits a surface https://home-comfort39494.mybuzzblog.com/11764637/the-smart-trick-of-urban-noise-solutions-that-no-one-is-discussing