white noise

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white noise (uncountable)

  1. (physics) A random signal (or process) with a flat power spectral density; a signal with a power spectral density that has equal power in any band, at any centre frequency, having a given bandwidth.
  2. (nontechnically) Any nondescript noise used for background or to mask or drown out other noise.
  3. (by extension) Speech that goes ignored or uncomprehended.
    • 2017, C. R. Robertson, Elements of Fae (page 137)
      The rest was white noise; I was sick of listening to who I was supposed to be.


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