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noise cancellation

   Also found in: Wikipedia 0.01 sec.
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.


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They are simple to use headsets, don''t include noise cancellation technology, only noise or wind filters.
As the frequency of noise increases, the effectiveness of the noise cancellation reduces.
The phone features advanced audio processing, full-duplex performance, distributed echo cancellation and noise cancellation.
 
 
 
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