音楽の音高・強弱変動に対する《ゆらぎ》解析の様式分析への応用 : ドゥビュッシーとラウ゛ェルのピアノ曲の比較 Application of 1/f^β fluctuation analysis of the zero cross and the energy envelope of music to its style analysis : Comparison between Debussy's and Ravel's piano pieces
In order to apply the physical 1/<i>f</i><sup>β</sup> fluctuation analysis to the musicological style analysis, we measured the adjusted β-values of the logarithmic plots of the power spectrum density functions, estimated by the Blackmann-Tukey method, from the zero crosses and the energy envelopes of the sound data of all the piano solo pieces composed by Debussy and Ravel and played by Paul Crossley. The results are that those spectra show approximately 1/<i>f</i> although each has its own individual profile, that on zero cross Ravel' s meanβ-value is, although slightly, significantly smaller than Debussy' s and relatively near 1/<i>f</i> , and that Debussy' s mean coefficient of determination <i>R</i><sup>2</sup> of β-values is higher. This slight but significant difference may reflect the close relation of these two composers on musical style.
- Journal of advanced science
Journal of advanced science 19(3), 41-46, 2008-02-29
Society of Advanced Science