Active noise control

(redirected from Active noise reduction)
Also found in: Medical, Acronyms.

Active noise control

Electronic masking of sound to cover unwanted or intrusive sound, such as speech or equipment noise.
References in periodicals archive ?
There is no active noise reduction for protection from steady state noise, but the tight fitting and well-sealed gel ear cups provide maximum passive attenuation.
Like Narce, Silynx provides combined hearing protection and enhancement systems via its Micro C40PS 20-metre immersible, software-defined headset which has a built-in GPS for blue force tracking and active noise reduction.
As shown in the figure, there is a progression of capability, starting from what has been used on the flight deck for decades up through active noise reduction (ANR), deep-insert, custom communication earplugs worn under improved earmuffs and used with a digital noise-canceling microphone.
The NoiseBuster Active Noise Reduction Safety Earmuff from Pro Tech Communications is designed to eliminate noise from a wide range of frequencies.
The new rating should be able to accommodate non-standard hearing protectors, such as active noise reduction or level-dependent protectors, indicated by special icons on the label.
The effectiveness of the ITH's active noise reduction technology was supported by a study completed in early December 2004 in the engineering psychology department of the U.
The ITH is based on the same active noise reduction technology Bose uses in their consumer headsets," said Claiborne.
Sound inside the ear is actively cancelled through a process known as active noise reduction," the spokesman explained, adding that while this technology has been used in headsets.
incorporating electronics) in design, including amplitude-sensitive communications headsets and active noise reduction (ANR) devices.
The system is compatible with all current Army headsets including the improved combat vehicle crewman active noise reduction headset.
The biggest boon, however, came in 1989, with the introduction of the Bose active noise reduction headset, invented by the Framingham, MA-based company best-known for a variety of smartly marketed high-tech home and automotive audio advances.
The company's patented Active Noise Reduction (ANR) earphone, Active Noise Cancellation (ANC) near-field and patent-pending Digital Super Directional Array (DSDA(TM)) far-field microphone technologies are incorporated into a wide range of audio products to eliminate background noise and ensure the optimum performance of voice applications.
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