1
What is?
Noise is determined by monitoring the state information of the engine rotational speed, using a speaker and the acoustic waves of noise emitted noise canceling opposite. To achieve the purpose of noise reduction. While taking advantage of real-time monitoring microphone noise level in the cabin, to adjust the noise reduction system.
2
what’s the use?
effectively reduce noise allows the driver to focus more on road conditions, the form of higher security. But can also improve the comfort of the vehicle.
3
Did you know?
– the use of active noise reduction can reduce reliance on physical noise reduction to some extent, avoid an increase in vehicle weight to improve fuel consumption.
· This system set up multiple microphones in the car, the interior noise level can be monitored in real time. The high cost of equipment
· active noise reduction used than conventional non-active noise reduction equipment is not isolated from all the noise out, the ideal sound engine It will increase as the engine speed increases linearly, which is constantly tuned automobile manufacturers are pursuing engine sound characteristics of the target.
4
Principle
Noise management system speed information continue to collect engine to to determine the current status of noise inside the vehicle. Then derived by calculating the opposite chip acoustic signal, acoustic car audio system by a high degree of reduction of the speaker and noise offset. While inside the cabin set up multiple microphones to collect real-time noise levels inside the vehicle, provide an adjusted basis for noise management systems.