An impulse noise filter can be used to enhance the quality of noisy signals, in order to achieve robustness in pattern recognition and adaptive control systems.
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The sound card also comes with built-in six watt ( W ) amplifiers ( 3W per channel ) with an additional noise filter to increase microphone sensitivity.
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TDK makes hard disk drives and drive heads used as data storage in computers as well as noise filters used in portable phones to ensure clear reception.
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Thus it's quite common, in order to get better performing impulse noise filters, to use model-based systems that know the properties of the noise and source signal ( in time or frequency ), in order to remove only impulse obliterated samples.
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Changes were also made to the functionality of the continuous noise filter whereby new inflexion points could be added to better match the FFT filter curve to that of the sampled noise in order to facilitate its removal without producing digital artifacts.
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These new two-way radios feature just about everything an adventure enthusiast could want _ current weather reports; audible storm-warning alerts; a built-in clock, alarm and stopwatch; a noise filter to protect against unwanted noise in the surrounding environment; and the radios are dust and shock resistant.
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Noise filtering ( as installed on computers as well as many modern appliances ) may help keep external noise out of X10 signals, but noise filters not designed for X10 may also attenuate X10 signals traveling on the branch circuit to which the appliance is connected.
