What does NRC and SAA stand for?
Sound absorption properties of acoustic materials can be measured in lab tests. Specifications for materials used in sound absorption commonly include an NRC (Noise Reduction Coefficient) for simplicity, in addition to more detailed frequency versus amplitude charts.
The Noise Reduction Coefficient (NRC) and Sound Absorption Average (SAA) values are both single number ratings that indicate the level of sound absorption provided by the product being tested
Continue reading “What is NRC ( Noise Reduction Coefficient)?”