Jaguar Land Rover adopts noise cancellation technology

Software stops unwanted external noises from 20Hz up to 1kHz

Jaguar Land Rover adopts noise cancellation technology

Jaguar Land Rover is the first carmaker to integrate innovative ‘active road noise cancellation’ technology.

Active road noise cancellation removes 90 per cent of road noise across a broad band of frequencies – from 20Hz up to 1kHz, according to the tech company behind it.

The industry-first technology from Silentium is similar to that found in a pair of high-end noise-cancelling headphones, but more advanced as it manipulates a larger amount of air.

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Up to six strategically positioned accelerometers on a vehicle’s chassis monitor unwanted road noise and send a signal to an on-board control unit with Silentium’s software, which plays an equivalent anti-noise signal through the vehicle’s speaker system.

The pressure waves from both the unwanted exterior noise and manufactured anti-noise reach occupants’ eardrums at exactly the same time and cancel each other out.

Anthony Manias, head of automotive at Silentium, said: “Active Acoustics will change the way car manufacturers reduce, cancel and enhance sound inside their vehicles, and how customers perceive and interact with these sounds.

“Silentium has proven that it can make broad band in-car noise cancellation work – now the duty is on carmakers to adopt the technology and ensure their customers can enjoy the benefits.”

Silentium says the technology also offers vehicle manufacturers a way to reduce their reliance on costly passive noise damping and insulation materials, and reduce vehicle weight.

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