Silentium and Hyundai to promote active noise cancellation to the masses – DRIVE

ARNC dampens road noise in a wide frequency range from 20 Hz to kilohertz. Israeli experts claim to suppress unwanted sounds with an efficiency of up to 90%.

Israeli company Silentium announced that it is accelerating the rollout of its Active Road Noise Cancellation (ARNC) system after a major automotive component manufacturer Hyundai Mobis selected the firm as the preferred software vendor for ARNC. The difference between Silentium ARNC and conventional noise suppression systems is the presence of up to six accelerometers in the chassis, which supply the control unit with information about noise sources.

It is not enough just to remove noise from the microphone, and then repeat them in antiphase through the speakers, creating a suppression effect. Silentium takes into account signals from noise sources.

Hyundai has a similar system called RANC… It has already been implemented on Genesis… Differences may be in the software that analyzes sounds and vibrations. At the same time, Silentium intends to promote its development not only in the automotive industry. Active noise cancellation can create “quiet bubbles” (the company even invented the Quiet Bubble trademark for them) in car interiors, first class airliners, on railway platforms and in train cars, in workshops and homes.

Experience with the Silentium system staged on a crossover Lynk & Co 01… You can clearly hear how the noise level changes when it is activated.

Silentium announces that, together with Hyundai Mobis, it began to cooperate with several automakers for the massive promotion of ARNC in the auto industry (the first partner, even before Hyundai, in the fall of 2020, became the concern Jaguar Land Rover). Silentium emphasizes that its complex works well even as part of a very simple and inexpensive speaker system, and therefore is suitable for models of different price ranges. Previous analogue devices were the prerogative of expensive cars. Silentium is far from the only company to have developed such a system.


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