W43 emulates an industry-standard hardware system, based on analog noise reduction technology, that was known for its benign, artifact-free, and efficient operation. Four dynamic EQ engines increase attenuation in bands as they become quieter, leaving louder sounds unaffected.
Free from the warbly artifacts sometimes found in broadband noise reduction, the W43 is optimized for reducing continuous noise from fans, lighting, and other low-level ambient sounds.