Active noise control

  • 05-Mar-2015 05:47 EST

Mentor Automotive’s XSe ANC (Active Noise Control) technology is a high-performance noise cancellation solution that can perform a host of functions with fewer hardware components, requiring less tuning and calibration when compared to competing approaches, the company claims. By carefully placing microphones and accelerometers inside the vehicle, synthesized signals from ANC generate anti-noise to create “quiet zones” for both driver and passenger. Legacy, narrowband solutions typically reduce a few harmonically related frequencies addressing engine order cancellation (EOC) only; Mentor claims that its ANC technology not only includes algorithms to address EOC, but also offers a wider spectrum of frequencies for noise cancellation of the more erratic and unpredictable sounds associated with road noise. ANC has enhanced performance algorithms that cover the complete audio spectrum, compared to traditional least-mean-square and normalized-least-mean-square solutions. This gives ANC fast convergence so it can handle sudden dynamic changes in noise as a result of various road surfaces. The system can be tuned in real time while it’s running, which allows dynamic configuration.

For more information, visit Booth 607 at SAE 2015 World Congress

HTML for Linking to Page
Page URL
Rate It
4.50 Avg. Rating

Read More Articles On

An ultralight door architecture nets a 42.5% weight savings compared to a current production door, and that's enough to put this lightweight concept, developed via collaboration, in an enviable position.
If there’s any doubt that connectivity is the next wave for advanced features and functions, it should dissipate after CES 2017. A multitude of advances in over the air updates and security will be shown in Las Vegas in January, setting the stage for much of the auto industry’s technology rollouts throughout the year.
Human-machine interfaces are changing rapidly and consolidating as radio head units handle more functions and connect to diverse systems inside and outside the vehicle.
Development of advanced automotive technologies is increasingly being driven by suppliers, rather than OEMs. And megadeals worth at least $500 million that are behind a growing number of next-gen technologies may reach the highest level since before the Great Recession. That’s the view from Las Vegas, as the 2017 CES (formerly the Consumer Electronics Show) opens to over 160,000 attendees.

Related Items

Training / Education
Technical Paper / Journal Article