Perceptual Atomic noise

A noise synthesis method with no external connotation is proposed. By creating atoms with random width, onset-time and frequency, most external connotations are avoided. The further addition of a frequency distribution corresponding to the perceptual Bark frequency, and a spectrum corresponding to the equalloudness contour for a given phon level further removes the synthesis from the common signal point-of-view. The perceptual frequency distribution is obtained by creating a probability density function from the Bark scale, and the equal-loudness contour (ELC) spectrum is created by filtering the atoms with a filter obtained in the warped frequency domain by fitting the filter to a simple ELC model. An additional voiced quality parameter allows to vary the harmonicity. The resulting sound is susceptible to be used in everything from loud noise music, contemporary compositions, to meditation music.