Now more and more models are equipped with active noise reduction function, especially in some American cars and Japanese cars, the system began to be equipped with more than 20w, will the noise be reduced with this system? How does this system work?
The car with active noise reduction function comes from the anc active noise reduction system developed by Bose. BOSE is a pioneer of active noise reduction technology. The principle is to first collect the characteristics of the noise waveform, and then calculate the inverted wave through the built-in processing chip, and then cancel it through the high-reduction speaker. Therefore, the necessary equipment for the active noise reduction system includes pickups, processing chips, and speakers. Each part must be high-quality to achieve the final effect, so the cost is higher than traditional non-noise reduction equipment.
In addition, the purpose of the BOSE ANC active noise reduction system is to allow the automotive industry to reduce its dependence on physical noise reduction. After all, a large number of sound insulation materials will inevitably increase the weight of the car body, thereby affecting power and fuel consumption.