Hyundai develops Road Noise Active Noise Control (RANC) system

Hyundai has announced that the company will unveil an upgraded version of its noise reduction system, Active Noise Control (ANC) system. This new technology promises to drastically reduce cabin noise.

Hyundai named the latest technology as the Road Noise Active Noise Control (RANC) system. Though the new technology works on the same principle of emitting inverted sounds of incoming noise, according to Hyundai, the new technology uses sound insulation materials in order to block engine and road noise and this is a shift from the traditional approach.

The company said that ANC is a better alternative than the traditional noise reduction approach because it uses lighter parts such as microphones and controllers which are much more effective. And apart from being effective, they also don’t increase the weight of the vehicle.

Hyundai develops Road Noise Active Noise Control (RANC)
Hyundai develops Road Noise Active Noise Control (RANC)

Hyundai accepted that in the previous technology, the iteration of the noise control system was limited in its workings. They also said that literally ANC gave results only “when noise was constant and the occurrence of the noise predictable.” Hyundai is considering that the new technology, RANC will be able to process multiple times of noises a lot quicker and cancel them out faster than done by ANC.

RANC uses an accelerator sensor with which, the system calculates the vibration of the road to the car and this is then analyzed by the control computer. RANC takes just 0.002 seconds to analyze. Simultaneously, it produces an inverted soundwave which is generated by the Digital Sound Processor. The microphone constantly monitoring the road noise cancellation status and sends related information to the DSP. This new system cancels noise for the driver’s seat, the passenger seat, and the rear seat separately.

Hyundai stated “RANC is a remarkable technology which takes existing NVH technology to the next level,” said Gangdeok Lee, a Research Fellow of NVH Research Lab, “We will continue to take the leading position of NVH technology and deliver the highest level of quietness to customers.”