Noise can be random or white noise with an even frequency distribution, or frequency-dependent noise introduced by a device's mechanism or signal processing algorithms. Noise reduction algorithms may distort the signal to some degree.Īll signal processing devices, both analog and digital, have traits that make them susceptible to noise. ![]() Noise reduction techniques exist for audio and images. Noise reduction is the process of removing noise from a signal. For the noise reduction of machinery and products, see noise control. ![]() ![]() For the reduction of a sound's volume, see soundproofing.
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