The difference between 3D active noise reduction technology and single point active noise reduction technology, Ansheng Technology completed tens of millions of A rounds of financing

Beijing Ansheng Technology announced that it has completed tens of millions of Series A rounds of financing. The investors are ArcLight Ventures and Xiangfeng Investment, a wholly-owned subsidiary of Singapore's Temasek. Ansheng Technology is the world's leading provider of active noise reduction solutions for 3D space. Since its establishment in 2016, it has won the investment of nine-in-one venture capital, rich capital, and many organizations including Taihuo Technology and Taikeyuan. .

Liu Yifan, founder & CEO of Anyi Technology, said that after the completion of this round of financing, it will focus on product development, promotion and team expansion. In 2017, Ansheng Technology has signed a strategic cooperation agreement with Xiaomi Industrial Chain Enterprise Yunmi Technology to help it build an active noise reduction system on the top suction hood. At the same time, it has cooperated with many well-known home appliance manufacturers such as Haier, Dreamer Fresh Air, AIRMX Fresh Air.

Xu Yinhai, co-founder of Ansheng Technology, said: Different from single-point active noise reduction technology, active noise reduction in 3D space must consider the analysis and modeling of 3D sound field. Ansheng Technology uses the world's most advanced sound field simulation and restoration technology and unique The noise separation algorithm can effectively deal with the noise problem of three-dimensional space fields such as home appliances and automobiles.

Noise affects the central nervous system and threatens health, and active noise reduction technology emerges as the times require.

Having a quiet and intimate home and driving environment is one of the basic aspirations for people to achieve a better life. In fact, the impact of noise on humans is by no means limited to subjective feelings. Living in a noisy environment for a long time, noise can affect the body tissues through the auditory organs acting on the central nervous system of the brain. With the development of active noise reduction technology and the application of this technology in various consumer products, it will become one of the most effective means to solve the noise problem.

As the first solution provider focusing on three-dimensional active noise reduction technology, Beijing Ansheng Technology Co., Ltd. is committed to providing manufacturers with a full range of sound quality improvement solutions by using international leading digital signal processing technology and acoustic holography technology.

The traditional noise reduction method is called passive noise reduction, which means that the noise absorption method is used to achieve noise reduction. However, the thick acoustic package not only does not help the irritating low-frequency noise, but also affects the air volume and heat dissipation performance of the exhaust type appliance. Active Noise Reduction (ANC) technology refers to the technology of using the microphone to listen to the noise sound waves and to process the reverse sound waves, which are mutually canceled by the interference during the propagation process to achieve noise reduction.

Technical map

Active noise reduction technology is also divided into single-point active noise reduction technology and three-dimensional active noise reduction technology. The main difference in application is that single-point ANC technology only covers the human ear, which requires wearable headphones and ear. A cover or the like is used as a carrier. The endless stream of active noise canceling headphones is the product of single-point ANC technology.

The 3D spatial active noise reduction technology needs to have excellent active noise reduction algorithm. In addition, it needs a deep acoustic theory background. It can analyze, simulate and reduce the sound field in 3D space. The area achieves the effect of active noise reduction, thus greatly expanding the scope of application. Typical application scenarios are: military, aviation, high-speed rail, automobiles, home appliances, IT, industry, etc.

The core technology of Ansheng Technology is derived from the prestigious Ray W. Herrick Laboratory in the United States.

At present, only five companies in the world have mature 3D space active noise reduction solutions, most of which are only applied to their own car audio, and can only deal with low frequency noise below 300Hz.

Technical map

The core technology of Ansheng Technology is derived from the renowned Ray W. Herrick Laboratory in the field of acoustics. The laboratory has served many well-known companies such as Rolls Royce, GM, Ford and Midea for more than 60 years. The unique algorithm of Ansheng Technology greatly improves the calculation efficiency of the three-dimensional sound field, and extends the frequency range of noise reduction to 2100Hz, which is more than twice the highest level in the industry. The already announced home appliance noise reduction solutions AS-Hood, AS-Fan, and AS-Air can help household appliances such as range hoods, air purifiers, and fresh air solve the contradiction between air volume and noise.

The three-dimensional active noise reduction technology will be brought to the automotive, home appliance and other industries to bring consumers a more comfortable product experience. In addition, the application of this technology will help users who are exposed to noise for a long time to reduce the noise caused by noise. Health hazards, I believe that in the near future, products equipped with three-dimensional active noise reduction technology provided by Ansheng Technology will be everywhere.

The founding team of Ansheng Technology comes from well-known enterprises such as Huawei and LeTV, and the famous American university Purdue University.

Liu Yifan, founder and CEO of Anyi Technology, graduated from Beijing University of Aeronautics and Astronautics and previously worked for Huawei Technologies Co., Ltd. Liu Shengfan, CTO and chief scientist of Ansheng Technology, is also a research professor at Purdue University. It is worth mentioning that Liu Yifan and Liu Yangfan are twin brothers. The theoretical model of high-order multi-level subsonic field simulation mentioned above is by Liu Yangfan. Founded, and therefore rated as a professional reviewer by the most authoritative academic journal "Applied AccusTIc". In addition, Xu Yinhai, co-founder of Anyi Technology, is from LeEco and has extensive experience in technology development and project management. Shi Rui, a marketing partner, is from Huawei and has extensive market experience and keen industry insight.