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  1. White noise is a signal (or process), named by analogy to white light, with a flat frequency spectrum when plotted as a linear function of frequency (e.g., in Hz). In other words, the signal has equal power in any band of a given bandwidth (power spectral density) when the bandwidth is measured in Hz.

  2. en.wikipedia.org › wiki › White_noiseWhite noise - Wikipedia

    Music. White noise is commonly used in the production of electronic music, usually either directly or as an input for a filter to create other types of noise signal.It is used extensively in audio synthesis, typically to recreate percussive instruments such as cymbals or snare drums which have high noise content in their frequency domain.

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