Active noise reduction technology is also divided into single-point active noise reduction technology and three-dimensional space active noise reduction technology, the main difference in application is that single-point ANC technology only covers a single point of the human ear, which requires wearable headphones, ear mugs, etc., as a carrier. Active noise-cancelling headphones on the market are products of single-point ANC technology.
     In addition to excellent active noise reduction algorithm skills, 3D space active noise reduction technology also needs a deep acoustic theoretical background to analyze, simulate and reduce the 3D space sound field, so as to achieve the effect of active noise reduction in specific areas under the premise of non-wearing, thus greatly expanding the application range. Typical application scenarios are: military, aviation, high-speed rail, automobile, home appliances, IT, industry and so on.