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单词 white noise
释义

WordReference Random House Unabridged Dictionary of American English © 2024
white′ noise′, 
    1. ElectronicsAlso called white sound. a steady, unvarying, unobtrusive sound, as an electronically produced drone or the sound of rain, used to mask or obliterate unwanted sounds.
    2. Physicsrandom noise with a uniform frequency spectrum over a wide range of frequencies.
    • 1965–70

Collins Concise English Dictionary © HarperCollins Publishers::
white noise n
  1. sound or electrical noise that has a relatively wide continuous range of frequencies of uniform intensity
  2. noise containing all frequencies rising in level by six decibels every octave
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更新时间：2025/2/23 5:30:56