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rigrig writes:

Hyundai is working on developing the world’s first Road Noise Active Noise Control system (RANC) [carscoops.com]

RANC (...) is able to analyze various types of noise in real-time and produce inverted soundwaves – for example, it can counteract the sounds created between tires and wheels or the rumble sounds coming from the road.

According to Hyundai, RANC can reduce in-cabin noise by 3 db.

This technology was developed with future vehicles in mind. As internal combustion models get phased out, vehicle noise will primarily come from three sources: powertrain, road and wind – but since electric and fuel cell vehicles make almost no powertrain noise, quieting road and wind noise will become imperative.

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