ピンクノイズ

noun

pink noise

A signal with a frequency spectrum such that the power spectral density is inversely proportional to the frequency. Used in acoustics, audio engineering, and sometimes for relaxation or sound masking.

• ピンクノイズはホワイトノイズより低てい音おんが強きょう調ちょうされている。

  Pink noise has more emphasis on low frequencies than white noise.