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2. List of noise topics - Wikipedia

   en.wikipedia.org/wiki/List_of_noise_topics

   Effective input noise temperature; Environmental noise; Equivalent noise resistance; Equivalent pulse code modulation noise; Errors and residuals in statistics; Fixed pattern noise; Flicker noise; Gaussian noise; Generation-recombination noise; Image noise; Image noise reduction; Intermodulation noise; Internet background noise; ITU-R 468 noise ...

3. Swimming machine - Wikipedia

   en.wikipedia.org/wiki/Swimming_machine

   A swimming machine, also known as a resistance swimming apparatus, is a self-contained device powered by a pump, designed to facilitate stationary swimming for athletes or recreational users. This can be achieved by either propelling water past the swimmer or providing support for the swimmer, either within a water environment or on dry land.

4. Category:Noise reduction - Wikipedia

   en.wikipedia.org/wiki/Category:Noise_reduction

   Image noise reduction techniques (19 P) N. Noise reduction systems (3 C, 9 P) Pages in category "Noise reduction"

5. Noise reduction - Wikipedia

   en.wikipedia.org/wiki/Noise_reduction

   Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio.

6. Acoustic quieting - Wikipedia

   en.wikipedia.org/wiki/Acoustic_quieting

   Acoustic quieting is the process of making machinery quieter by damping vibrations to prevent them from reaching an observer. Machinery vibrates, causing sound waves in air, hydroacoustic waves in water, and mechanical stresses in solid matter.

7. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Sound is captured from the microphone(s) furthest from the mouth (the noise signal(s)) and from the one closest to the mouth (the desired signal). The signals are processed to cancel the noise from the desired signal, producing improved voice sound quality. In some cases, noise can be controlled by employing active vibration control. This ...

8. Noise control - Wikipedia

   en.wikipedia.org/wiki/Noise_control

   Highway noise is today less affected by motor type, since the effects in higher speed are aerodynamic and tire noise related. Other contributions to the reduction of noise at the source are: improved tire tread designs for trucks in the 1970s, better shielding of diesel stacks in the 1980s, and local vehicle regulation of unmuffled vehicles. [13]

9. Active EMI reduction - Wikipedia

   en.wikipedia.org/wiki/Active_EMI_reduction

   In the field of EMC, active EMI reduction (or active EMI filtering) refers to techniques aimed to reduce or to filter electromagnetic noise (EMI) making use of active electronic components. Active EMI reduction contrasts with passive filtering techniques, such as RC filters , LC filters RLC filters , which includes only passive electrical ...