What does NRC stand for?
It is an acronym for Noise Reduction Coefficient.
What is the definition of NRC?
Wiki defines NRC as "The Noise Reduction Coefficient (commonly abbreviated NRC) is a scalar representation of the amount of sound energy absorbed upon striking a particular surface. An NRC of 0 indicates perfect reflection; an NRC of 1 indicates perfect absorption."
How is a product given an NRC rating?
An NRC rating is given by a certified body of testers such as the Nation Research Council . The testing is performed in their laboratory, in a controlled environment. Sounds are emitted at different octaves in the room, and the measurements are taken, that measure how much sound the product being test, absorbed. The NRC rating is provided at each octave test, and represented as an average.
How is this helpful when choosing acoustic panels?
Acoustic panels are tested and given a rating. That rating is usually considered when solving room acoustic issues. If you are dampening bass sounds in a music studio, you will want an acoustic panel that has a high NRC rating at low frequencies. If you are trying to quiet an office, then you would only require a panel that test high on the NRC scale in the upper frequencies. The lower the frequency that you are trying to trap, the thicker the panel will be.
How important is the NRC rating?
Most of the work we do, if in offices or restaurants. It is only important to dampen the mid to high frequencies, Our panels have an .9 NRC rating at those frequencies.
What is the balance between NRC and acoustic coverage?
Acoustic coverage is one of the most important factor for us, we use this calculation method. If I had the choice between increasing the NRC rating of increasing the coverage, I would choose the coverage for commercial and entertainment spaces.