Active Noise Cancellation (ANC)Back to Euro Tourer Technology
How the system works
Active Noise Cancellation (ANC) is designed to dramatically reduce low frequency noise in the interior. The system operates whenever the car is running, regardless of whether the audio system is on or off.
There are two microphones in the cabin area.
The microphones capture low-end drivetrain frequencies entering the cabin, and send a signal to the Active Noise Cancellation unit. The control unit then creates a precisely timed reverse phase audio signal that is sent to an amplifier, which powers the door speakers and the subwoofer positioned on the rear parcel shelf.
In the frequency range below 100 hertz, ANC results in an impressive 10 dB reduction in noise level.
Since the system is designed to cancel low-frequency sound, it doesn’t use any of the audio system's tweeters. The ANC dramatically reduces exterior noise. In the frequency range below 100 hertz, ANC results in an impressive 10 dB reduction in noise level.