Active Noise Control


Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia.

Active Noise Control

The use of energy-consumptive systems to reduce “white” noise by applying specific algorithms and computer-controlled digital processors, to generate sounds opposite that of the undesired noise(s), effectively cancelling their effects.
Mentioned in ?
References in periodicals archive ?
According to Claude Mathieu, president and CEO of MANN+HUMMEL USA, the company was initially looking at active noise control technology but determined that it would be an exceedingly expensive approach to accomplishing this noise enhancement.
The 30 papers in this collection from the November 2004 congress present the results of recent experiments on active noise control, aero/hydro acoustics, and structural acoustics.
developers of spatial & broadband active noise control (ANC) technologies, has selected Analog Devices' Blackfin processors to power their ANC products.
Silentium (Rehovot, Israel) and GE Energy (Houston, TX), will collaborate on the development of active noise control for power generation ventilation.
a leader in global electronic design innovation, and QNX Software Systems, a subsidiary of BlackBerry and a world leader in software platforms for in-car electronics, today announced that QNX has ported its QNX Acoustics for Active Noise Control (ANC) software to the Cadence Tensilica HiFi Audio/Voice digital signal processing (DSP) core.
Active Noise Control , which reduces undesirable engine harmonics, providing a quieter cabin
The model features Active Noise Control, collision avoidance system and Forest Air climate control.
Additionally, there is an Active Noise Control (ANC) system in the cabin that measures the booming noise from deactivation and emits via the audio system an opposite sound wave to cancel out the booming.
KARLSBAD, Germany -- Harman Becker Automotive Systems, the automotive division of Harman International and Lotus Engineering have reached an agreement to jointly develop noise management solutions using Lotus' patented Active Noise Control technologies.
Cabin quietness is enhanced by additional noise-insulating materials, a thicker front-side door glass, noise attenuating wheels, and the addition of Active Noise Control technology.
Superior cabin quietness and overall refinement is accomplished with the use of three-layer acoustic glass for the windshield and front side windows, thick rear door glass, triple side-sill door seals and Active Noise Control technology.
For the booming noise that does make it into the cabin, there's an active noise control system that analyzes the incoming sound waves and transmits an opposite sound wave through the audio system to cancel it.

Full browser ?