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Optimization of sound synthesis model parameters

Luka Stepančič (2013) Optimization of sound synthesis model parameters. EngD thesis.

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    In this document we present a sound synthesis model prototype where a realistic sound reproduction of acoustic musical instruments is the final goal. A physically informed digital waveguide synthesis method was chosen for modelling the instrument properties. The method was applied for the case of the piano. A procedure was presented for design, analytical derivation and automatic calibration of the synthesis model parameters. A procedure for calibration with multiobjective minimization of perceptual differences between the sources and synthesized sounds was proposed. Four perceptually based sound feature distances with fast computation capabilities were chosen for optimization. For parameter search, a differential evolution scheme for multiobjective optimization was used. Finally, extension possibilities of the calibration method and future directives are shown.

    Item Type: Thesis (EngD thesis)
    Keywords: evolutionary algorithms, multiobjective optimization, physical modelling, audio synthesis, digital signal processing
    Number of Pages: 65
    Language of Content: Slovenian
    Mentor / Comentors:
    Name and SurnameIDFunction
    doc. dr. Mira Trebar252Mentor
    Link to COBISS: http://www.cobiss.si/scripts/cobiss?command=search&base=50070&select=(ID=9987668)
    Institution: University of Ljubljana
    Department: Faculty of Computer and Information Science
    Item ID: 2093
    Date Deposited: 08 Jul 2013 15:49
    Last Modified: 22 Jul 2013 15:21
    URI: http://eprints.fri.uni-lj.si/id/eprint/2093

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