Noise Reduction Coefficient (NRC) Calculator
Compute NRC as the average of absorption coefficients at 250, 500, 1000, and 2000 Hz, rounded to the nearest 0.05.
NRC Rating
0.65
Raw Average
0.6375
Compute NRC as the average of absorption coefficients at 250, 500, 1000, and 2000 Hz, rounded to the nearest 0.05.
NRC Rating
0.65
Raw Average
0.6375