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The Ultimate Guide: How is NRC Measured Today?
How is NRC measured? Understanding the Noise Reduction Coefficient (NRC) At its core, the Noise Reduction Coefficient (NRC) is a scalar representation of the amount of sound energy absorbed upon striking a surface. It is expressed as a number between 0 and 1, with 0 indicating total reflection (no absorption) and 1 signifying total absorption. This coefficient is crucial for selecting materials that will enhance the acoustic quality of a space by dampening noise levels,