Hyundai Motor Company undergoes a strategic partnership with Analog Devices to launch the automotive industry’s first all-digital road noise cancellation system leveraging Analogs' Automotive Audio Bus technology. Hyundai further intends to more broadly adopt this technology for its fundamental audio connectivity & infotainment applications across its automotive fleet.

Commenting on this collaboration, Dr. Kang-Duck Ih, Research Fellow, Hyundai, says, “As an early Automotive Audio Bus adopter, we realized 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.” “The low latency guaranteed by Automotive Audio Bus enabled us to implement this groundbreaking RANC technology and accelerate its deployment to mass production,” he adjoins.

Hyundai’s RANC system dramatically reduces noise within the cabin of a vehicle. The system can analyze various types of noise in real-time & produce inverted sound waves including the different types of road noises such as resonant sounds created between tires & wheels or rumble sounds coming up from the road.

The low latency guaranteed by Automotive Audio Bus enabled us to implement this groundbreaking RANC technology and accelerate its deployment to mass production

The Automotive Audio Bus technology reduces cabling weight by up to 75 percent & improves automotive fuel efficiency and total system costs. This innovation marks the industry’s lowest latency, high-speed digital interconnect technology distributing audio & 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. This technology significantly reduces associated wiring harness cost & complexity found in traditional analog-based road noise cancellation system deployments.

“We have collaborated closely with Hyundai to architect its all-digital RANC system that leverages our Automotive Audio Bus 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,” says Patrick Morgan, Vice President, Automotive Electrification & Infotainment, Analog Devices. “Analog Devices' work with Hyundai demonstrates Automotive Audio Bus' increasing viability & further distinguishes Hyundai’s vehicles in today’s marketplace,” he concludes.