JLR unveils active road noise canceling

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Jaguar Land Rover has revealed new noise cancellation technology designed to remove unwanted road and tire sounds from vehicle cabins.

JLR says the technology, introduced on the new Jaguar F-Pace, XF and Range Rover Velar, is capable of lowering unwanted noise peaks by 10dB and overall noise levels by 3-4dB – the equivalent of turning down the in-car sound system by four ‘steps’. The company says that this significant reduction in exposure to low-frequency noises up to 300Hz can help prevent driver fatigue on longer journeys.

According to the manufacturer, the system is enabled by specialist Silentium’s Active acoustics technology. This uses sensors on each wheel to monitor vibrations from the road surface, in order to calculate the opposite phase sound wave needed to remove the noise heard by the occupants. By monitoring in real time, unexpected noises from potholes or rough surfaces can be isolated and removed.

The cancellation sound is played through the sound system, and the vehicle monitors cabin occupancy to optimize system performance for both driver and passengers. The system is combined with JLR’s Engine Noise Cancellation (fitted on the F-Pace and new Velar with the P400e plug-in hybrid (PHEV) powertrain).

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Lawrence has been covering engineering subjects – with a focus on motorsport technology – since 2007 and has edited and contributed to a variety of international titles. Currently, he is responsible for content across UKI Media & Events' portfolio of websites while also writing for the company's print titles.

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