![]() ![]() It is also known a popcorn noise for the popping or crackling sounds it produces in audio circuits.Transit-time noise If the time taken by the electrons to travel from emitter to collector in a transistor becomes comparable to the period of the signal being amplified, that is, at frequencies above and beyond, the transit-time effect takes place and noise input impedance of the transistor decreases. Each shift in offset voltage or current lasts for several milliseconds to seconds. Main article:Burst noise consists of sudden step-like transitions between two or more discrete voltage or current levels, as high as several hundred, at random and unpredictable times. Noise is also typically distinguished from, which is an unwanted systematic alteration of the signal waveform by the communication equipment, for example in (SINAD) and (THD+N) measures.While noise is generally unwanted, it can serve a useful purpose in some applications, such as. ![]()
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