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‘1/fnoise’ in music and speech


THE power spectrum S(f), of many fluctuating physical variables, V(t), is ‘1/f-like’, varying as f−γ (0.5γ1.5), over many decades of frequency (see ref. 1 for review). We have found that loudness fluctuations in music and speech, and pitch (melody) fluctuations in music exhibit 1/f power spectra.

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VOSS, R., CLARKE, J. ‘1/fnoise’ in music and speech. Nature 258, 317–318 (1975).

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