Analog Devices collaborates with Hyundai to launch industry’s first all-digital road noise cancellation system

Analog Devices (ADI) has announced a strategic collaboration with Hyundai Motor Company (HMC) where Hyundai plans to launch the automotive industry’s first all-digital road noise cancellation system leveraging ADI’s Automotive Audio Bus (A²B) technology. Hyundai also intends to more broadly adopt ADI’s A²B technology for its fundamental audio connectivity and infotainment applications across its automotive fleet.

“As an early A²B adopter, we realised the potential of this technology for not only our Road-noise Active Noise Control (RANC) 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 groundbreaking RANC technology and accelerate its deployment to mass production.”

Hyundai’s RANC system dramatically reduces noise within the cabin of a vehicle. The system can analyse various types of noise in real-time and produce inverted sound waves. For example, there are different types of road noises that the new technology can process, such as resonant sounds created between tires 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.”

A²B reduces cabling weight by up to 75 percent and improves automotive fuel efficiency and total system costs. ADI’s A²B is the industry’s lowest latency, high-speed digital interconnect technology distributing audio and control data together with clock and power over a single, unshielded twisted-pair wire. Current deployment of automotive road noise cancellation systems has been constrained by the availability of a cost-effective, low latency networking technology that efficiently connects required input sensors to a central processing unit. ADI’s A²B technology significantly reduces associated wiring harness cost and complexity found in traditional analogue-based road noise cancellation system deployments. For more information about A²B, visit: http://www.analog.com/a2b

ADI’s collaboration with Hyundai emphasises the growing importance of A²B for automotive manufacturers in emerging wiring intensive and latency sensitive applications, including road noise cancellation, in-car communications, and personalised audio or sound zones.

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