| 单词 | random noise |
| 释义 | > as lemmasrandom noise random noise n. Electronics and Telecommunications unwanted electrical signals caused by randomly occurring transient disturbances, sometimes affecting sound or video output; spec. a signal component whose instantaneous amplitudes follow a statistically random or Gaussian distribution. ΘΚΠ the world > matter > physics > science of sound > [noun] > random noise white1917 random noise1937 pink noise1961 red noise1961 1937 Philos. Trans. (Royal Soc.) A. 236 202 The [oscillograph] system permitted a valuable discrimination against random noise. 1973 P. Lord & E. R. Robinson tr. H. Kuttruff Room Acoustics viii. 211 The room under investigation..is excited by stationary random noise..with a large frequency bandwidth. 1995 P. Terry in C. Hollin Contemp. Psychol. viii. 156 Although the EEG record is typically the product of millions of neurons firing at many different frequencies, computer analyses can allow various contributing patterns to be differentiated from what..may appear to be random noise. < as lemmas |
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