Communauté électroacoustique canadienne
Canadian Electroacoustic Community
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Works » By Title » L » Laurian (5:41 / 1988)

Nicolas Sordet

“Laurian” is a piece wholly realized by computer. Its sonorous material consists of a soundtrack produced by several oscillators (CASHEAB) and is cut out dynamically by slow amplitude modulations generated by the wave-forms of the sound. All materials are managed by a mathematical series called the ‘Fibonacci series’ having the property to produce the golden number born of the ratio between the ‘antecedent’ and the ‘consequent’ terms. For example, the spectrum is made up of harmonics 2, 3, 5, 8, 13, 21, which are the first terms of the series. In a parallel direction, this same set adjusts the varying sections and organizes the construction of melodic modes which appear during the piece. These proportions do not come out so that the listener's consciousness measures it. But the redundance in the diverse parts of the acoustical world gives the whole its structural coherence on which the shape of “Laurian” can rise. NS

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