There are several noise generation methods. For example, heated resistors, temperature-limited vacuum diodes, zener diodes, and gas discharge tubes. A source that can be switched on and off ("gated") ...
They are commonly used in the recording studio and sound reinforcement. Rock musicians may also use small portable units to control unwanted noise from their amplification systems. Band-limited noise ...
In signal theory, the noise floor is the measure of the signal created from the sum of all the noise sources and unwanted signals within a measurement system, where noise is defined as any signal othe ...
The noise figure is the difference in decibels (dB) between the noise output of the actual receiver to the noise output of an “ideal” receiver with the same overall gain and bandwidth when the recei ...
Noise-equivalent power (NEP) is a measure of the sensitivity of a photodetector or detector system. It is defined as the signal power that gives a signal-to-noise ratio of one in a one hertz output ba ...
Noise, in analog video and television, is a random dot pattern of static displayed when no transmission signal is obtained by the antenna receiver of television sets and other display devices. The ran ...
In radio reception, noise is the superposition of white noise and other disturbing influences on the signal, caused either by thermal noise and other electronic noise from receiver input circuits or b ...
Main article: Johnson–Nyquist noiseJohnson–Nyquist noise (sometimes thermal, Johnson or Nyquist noise) is unavoidable, and generated by the random thermal motion of charge carriers (usually electron ...
Main article: Health effects from noiseNoise pollution effects both health and behavior. Unwanted sound (noise) can damage psychological health. Noise pollution can cause hypertension, high stress lev ...
Main article: Johnson–Nyquist noiseJohnson–Nyquist noise (sometimes thermal, Johnson or Nyquist noise) is unavoidable, and generated by the random thermal motion of charge carriers (usually electron ...
People trade speculatively because they disagree about the future; this company will grow a great deal over the next three years, this commodity will become cheaper starting next month, and so on. The ...
Noise in audio, recording, and broadcast systems refers to the residual low level sound (usually hiss and hum) that is heard in quiet periods of a program.In audio engineering it can refer either to t ...
Main article: Noise regulationNoise regulation includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government. After a w ...
Neuronal noise begins at the microscopic level with atomic collisions and agitation. On the postsynaptic membrane, neural noise has been evident in the early stages of processing sight, smell, and hea ...
Mode partition noise: In an optical communication link, is phase jitter of the signal caused by the combined effects of mode hopping in the optical source and intramodal distortion in the fiber.Mode h ...
