Experimentally-tuned synthesis of a thin plate

Sebastian Duran, Michele Ducceschi, Henna Tahvanainen, Ludovico Ausiello

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Accuracy is one of the main goals in the field of physical modelling sound synthesis, particularly when trying to emulate the acoustics behaviour of a target musical instruments. Knowledge of the elastic constants for a specific tonewood is thus required for a realistic sound replica of the final instrument. The purpose of the presented research is to propose a procedure allowing for the efficient and faithful sound synthesis of a real wooden plate. To this end, by following a recent study, an experimental procedure is used and revised. Finite differences are here exploited instead of commercial FEM software to collect the quantised wavenumbers of a thin wooden plate via least-squares, allowing for a more accessible and open-source procedure. A non-invasive experimental measurement set-up is introduced to acquire the eigenfrequencies of the plate. The difference between computed and observed data is minimized and the elastic features of the plate are determined through a second least-squares optimisation. A physical model of the plate based on finite differences is informed and tuned by using the above-mentioned information. The numerical eigen-value problem is then used to compute the experimentally-informed modal basis of the sound engine.
Original languageEnglish
Title of host publicationProceedings of Acoustics 2023 Conference
PublisherInstitute of Acoustics
Number of pages7
Publication statusPublished - 16 Oct 2023
EventAcoustics 2023 - Winchester, United Kingdom
Duration: 16 Oct 202317 Oct 2023


ConferenceAcoustics 2023
Country/TerritoryUnited Kingdom

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