Dynamic Grids for Finite-Difference Schemes in Musical Instrument Simulations

Silvin Willemsen, Stefan Bilbao, Michele Ducceschi, Stefania Serafin

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

3 Citationer (Scopus)
35 Downloads (Pure)

Abstrakt

For physical modelling sound synthesis, many techniques are available; time-stepping methods (e.g., finite-difference time-domain (FDTD) methods) have an advantage of flexibility and generality in terms of the type of systems they can model. These methods do, however, lack the capability of easily handling smooth parameter changes while retaining optimal simulation quality and stability, something other techniques are better suited for. In this paper, we propose an efficient method to smoothly add and remove grid points from a FDTD simulation under sub-audio rate parameter variations. This allows for dynamic parameter changes in physical models of musical instruments. An instrument such as the trombone can now be modelled using FDTD methods, as well as physically impossible instruments where parameters such as e.g. material density or its geometry can be made time-varying. Results show that the method does not produce (visible) artifacts and stability analysis is ongoing.
OriginalsprogEngelsk
TitelProceedings of the 24th International Conference on Digital Audio Effects (DAFx20in21)
RedaktørerGianpaolo Evangelista, Nicki Holighaus
Antal sider8
Vol/bind2
UdgivelsesstedVienna
Publikationsdato8 sep. 2021
Sider144-151
StatusUdgivet - 8 sep. 2021
Begivenhed24th International Conference on Digital Audio Effects - University of Vienna (virtual), Vienna, Østrig
Varighed: 8 sep. 202110 sep. 2021
Konferencens nummer: 24
https://dafx2020.mdw.ac.at/

Konference

Konference24th International Conference on Digital Audio Effects
Nummer24
LokationUniversity of Vienna (virtual)
Land/OmrådeØstrig
ByVienna
Periode08/09/202110/09/2021
Internetadresse
NavnInternational Conference on Digital Audio Effects
Vol/bind2
ISSN2413-6700

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  • Best Papers Award (DAFx20in21)

    Willemsen, Silvin (Modtager), Bilbao, Stefan (Modtager), Ducceschi, Michele (Modtager) & Serafin, Stefania (Modtager), 9 sep. 2021

    Pris: Konferencepriser

Citationsformater