1：What is it?
Active Noise Cancellation is a technology that utilizes engine speed information to determine the noise state and emits sound waves through speakers to cancel out the noise. It aims to reduce noise levels. Microphones inside the vehicle cabin continuously monitor the noise level and make adjustments to the noise cancellation system.
2：What is it used for?
Effective noise reduction allows drivers to focus more on the road conditions, improving overall safety. It also enhances the comfort of the vehicle.
3：Did you know?
Active Noise Cancellation helps reduce reliance on physical noise reduction measures to avoid increasing vehicle weight and fuel consumption.
The system utilizes multiple microphones placed inside the vehicle to monitor real-time noise levels.
Active Noise Cancellation systems generally have higher equipment costs compared to traditional non-noise cancellation devices. It's important to note that active noise cancellation does not completely eliminate all noise. Automotive manufacturers aim to achieve an ideal engine sound that linearly increases with engine speed.
4：How does it work?
The noise management system continuously collects engine speed information to determine the current noise level inside the vehicle. It then processes the data using a dedicated chip to generate acoustic signals that are opposite in phase to the noise. These sound waves are emitted through high-fidelity speakers in the vehicle's audio system to cancel out the noise. Additionally, multiple microphones are placed inside the cabin to collect real-time noise levels, providing input for the noise management system's adjustments.
