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Active Road Noise Cancellation (ARNC) technology from Silentium helps remove unwanted sounds from the cabin by reducing low-frequency noise exposure from wheel vibrations and playing back noise cancellation through in-car speakers. The significant reduction in exposure to low-frequency noises up to 300Hz can help prevent driver fatigue on longer journeys.
Fatigue affects the ability of a driver to deal with hazards or unexpected events, with tired motorists recording an average reaction time increase of 16.72% compared to those fully alert. "Reducing accidents and improving driver wellbeing is a key part of Jaguar Land Rover’s journey to Destination Zero: an ambition to make societies safer and healthier and our environments cleaner through relentless innovation," the company says.
ARNC, enabled by Silentium’s Active Acoustics technology, uses sensors on each wheel to constantly monitor the vibrations from the road surface and calculates 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 Meridian sound system, with the vehicle monitoring cabin occupancy to optimize Active Road Noise Cancellation performance for all drivers and passengers. The technology offers a no-compromise solution to balancing refinement, vehicle weight and driving dynamics for a complete premium feel.
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Active Road Noise Cancellation combines with Engine Noise Cancellation on the new Jaguar F-PACE and new Range Rover Velar with the P400e plug-in hybrid (PHEV) powertrain to further enhance the sense of wellbeing. The pioneering system allows the PHEV variant to be refined for lower CO2 emissions and efficiency with no impact on driver experience.
"We are committed to creating a haven for our customers and this new technology allows us to remove unwanted noises from the cabin. It makes the experience more tranquil, improving passenger wellbeing and helping to reduce cognitive load and thus reaction times. This research is all part of the journey to Destination Zero," says Iain Suffield, Jaguar Land Rover Refinement Advanced Technologies Specialist.
"Active Road Noise Cancellation technology not only has the potential to improve road safety but also wellbeing and quality of life for our customers. In a post-coronavirus world, where a ‘new normal’ is emerging, we expect customer expectations of private transport to change. An extra focus will be placed on safe, clean mobility where personal space, wellbeing and hygiene carry a premium," adds Dr Steve Iley, Jaguar Land Rover Chief Medical Officer. New technologies and materials being developed at Jaguar Land Rover to meet the changing mobility world also include a Driver Condition Monitor and Cabin Air Ionization with PM 2.5 filtration.
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Since the acquisition in 2008 by Tata Motors, Jaguar Land Rover is now the UK’s largest automotive manufacturer, built around two iconic British car brands. The British company maintains two major design and engineering sites, three vehicle manufacturing facilities, an Engine Manufacturing Centre and Battery Assembly Centre in the UK, with additional vehicle plants in China, Brazil, India, Austria and Slovakia.
Silentium specializes in developing innovative Active Acoustic products and solutions with a global R&D and sales base. Silentium's patented Active Acoustic Technologies and algorithms control personal sound spaces and eliminate unwanted sounds in everything from cars to commercial goods. The company's mission is to reduce the adverse effects of sounds on health, safety and privacy and to make it possible for each and every one to design their own acoustic experience.
www.jaguarlandrover.com
www.silentium.com