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The term NRC is an acronym for Noise Reduction Coefficient, which is a numerical rating that represents the average of a materials' sound absorption 

coefficients within a certain of audible frequencies (namely: 250Hz – 2000Hz). The rating is designed to simplify and help analyze how materials and/or 

products absorb these mid-frequency sound waves.

As noise is emitted from the TV, SINOCEILING acoustic wall panel with a high NRC will decrease the amount sound transferred back to the person within 

the space

When it comes to sound absorption, different materials have varying abilities to absorb sounds of different frequencies. Low frequency sounds have 

longer wavelengths and require thicker and denser materials to absorb them, while high frequency sounds have shorter wavelengths and can be 

absorbed by lighter and more porous materials.