noise cancellation


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noise cancellation

(1) The elimination of unwanted signals in an electronic circuit. See noise and dynamic noise reduction.

(2) The elimination of unwanted noise in the environment using noise cancelling headphones. A microphone in the headphones picks up external sound and creates an inverse signal to the speakers in order to cancel it. The headphones can also be used to listen to audio from a CD, DVD or other source at the same time. See echo cancellation.
References in periodicals archive ?
Long playtime with rechargeable and replaceable battery The battery inside BeoPlay H8 gives you up to a whopping 14 hours of playtime even with the noise cancellation turned on.
Active Noise Cancellation technology helps enable the 2013 Fusion Hybrid sedan to deliver EPA-certified 47 mpg city and 47 mpg highway ratings that combine for 47 mpg overall.
ams has supported the introduction of the AS3435 and AS3415 ANC ICs with the release of an improved design tool, enabling the quicker and easier development of the filter networks that match the operation of noise cancellation to the sonic characteristics of the headset design.
Adapting noise cancellation technology to work in a vehicle interior was difficult.
Quellan's analog ICs provide unique capabilities for next generation consumer products by using a combination of dynamic equalization and noise cancellation that allow designers to proactively address the widest range of signal integrity issues.
Adding multi-mic noise cancellation to our existing SoundClear product raises the sound quality bar even higher for headsets, hands-free kits, and other products requiring higher levels of noise cancellation," said Bob Ackmann, CEO of Acoustic Technologies.
Other noise cancellation headsets cancel noise by cutting away audio frequency and reducing sound quality.
Unlike traditional commercial noise cancellation solutions (including those used in applications such as audio conferencing, stereo and hi-fidelity sound reinforcement and avionics), Noise Free products provide, receive and transmit noise cancellation and require no additional hardware devices, DSP chips, or other costly additions to support laptop or VoIP handset usage.
Company Operations Division Expands to Meet Escalating Demand for Noise Cancellation Devices
NEW YORK -- Quellan, a leader in analog noise cancellation devices, today showcased its revolutionary technology and confirmed once again the company's vast potential for financial growth.
Industry veteran joins Quellan to manage rapid growth of groundbreaking RF noise cancellation company.
maker of the world's top-selling notebook computer cases and accessories, announced today the availability of its new Travel-Ease Active Noise Cancellation Headphones.