
Noise Reduction Coefficient (NRC)
The Noise Reduction Coefficient (NRC) is a measurement that indicates how effectively a material absorbs sound. Ranging from 0 to 1, a higher NRC value means better sound absorption: 0 means no absorption, while 1 signifies complete absorption. For example, walls with a high NRC can help reduce echo and noise in a room, making it quieter and more comfortable. NRC is commonly used in architecture and design to select materials for spaces like offices, theaters, and classrooms, where sound control is important for privacy and clarity.