Industry’s first all-digital road noise cancellation system

Analog Devices has formed a strategic collaboration with Hyundai Motor Company, where Hyundai prepares to launch what is claimed to be the automotive industry’s first all-digital road noise cancellation system using ADI’s A2B technology. The company also plans to more broadly adopt ADI’s A2B technology for its primary audio connectivity and infotainment applications over its automotive fleet.

“As an early A2B adopter, we realised the potential of this technology for not only our Road-noise Active Noise Control systems but also for other vehicle applications fundamental to passenger and driver experience,” said Dr Kang-Duck Ih, research fellow, Hyundai. “The low latency guaranteed by A2B enabled us to implement this ground-breaking RANC technology and accelerate its deployment to mass production.”

The company's RANC system dramatically decreases noise within the cabin of a vehicle. The system can analyse numerous types of noise in real-time and create inverted sound waves. For example, there are many types of road noises that the new technology can process, including resonant sounds created between tyres and wheels or rumble sounds coming up from the road.

“We have collaborated closely with Hyundai to architect its all-digital RANC system that leverages our A2B technology to reduce equipment cost, weight, and design complexity, and in turn, improve overall fuel efficiency – helping solve several challenges of the electronic RANC system,” said Patrick Morgan, vice president, Automotive Electrification and Infotainment, Analog Devices. “ADI’s work with Hyundai demonstrates A2B’s increasing viability and further distinguishes Hyundai’s vehicles in today’s marketplace.”