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White noise
01
ホワイトノイズ
a noise that holds numerous sound frequencies with the same strengths
例
The white noise from the air conditioner was a constant background hum in the office.
The white noise of city traffic was a constant part of his daily routine.
The white noise machine emitted sound across a wide frequency range to mask background noise.
White noise is used in audio testing because it includes a full range of frequencies.
I played white noise through my headphones to drown out the chatter in the busy café.
