Nor1227 Free-field Microphone

The Nor1227 is a precision 1/2" free-field condenser microphone engineered for exceptionally low self-noise performance, making it the ideal choice for measuring quiet environments and achieving maximum dynamic range. With a self-noise level below 16 dB(A) and a dynamic range exceeding 110 dB, the Nor1227 enables accurate measurement of low-level sound sources that would be masked by the inherent noise floor of standard microphones. The low-noise performance of the Nor1227 is achieved through a carefully optimized diaphragm design and precision manufacturing that minimizes both thermal noise and mechanical noise contributions. This makes the microphone particularly valuable for background noise measurements in recording studios, anechoic chambers, clean rooms, and hospital environments where ambient levels can fall below 25 dB(A). The free-field frequency response extends across the full audio bandwidth, maintaining Class 1 accuracy throughout. For acoustics consultants and researchers across the GCC, the Nor1227 addresses the growing demand for precise low-level noise measurements in premium residential developments, luxury hotel projects, and high-specification office environments where background noise criteria such as NC/RC ratings must be verified. The microphone is also essential for laboratory measurements where the noise floor of the measurement system must be significantly below the sound source under test to ensure accurate characterization.