A Real-Time Synthesis Oriented Tanpura Model

Maarten van Walstijn, Jamie Bridges, Sandor Mehes

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

14 Citations (Scopus)
872 Downloads (Pure)


Physics-based synthesis of tanpura drones requires accurate simulation of stiff, lossy string vibrations while incorporating sustained contact with the bridge and a cotton thread. Several challenges arise from this when seeking efficient and stable algorithms for real-time sound synthesis. The approach proposed here to address these combines modal expansion of the string dynamics with strategic simplifications regarding the string-bridge and string-thread contact, resulting in an efficient and provably stable time-stepping scheme with exact modal parameters. Attention is given also to the physical characterisation of the system, including string damping behaviour, body radiation characteristics, and determination of appropriate contact parameters. Simulation results are presented exemplifying the key features of the model.
Original languageEnglish
Title of host publicationProceedings of the 19th International Conference on Digital Audio Effects (DAFx-16)
Number of pages8
Publication statusPublished - 01 Sep 2016
Event19th International Conference on Digital Audio Effects - Brno, Czech Republic
Duration: 05 Sep 201609 Sep 2016

Publication series

NameInternational Conference on Digital Audio Effects
ISSN (Print)2413-6700
ISSN (Electronic)2413-6689


Conference19th International Conference on Digital Audio Effects
Abbreviated titleDAFx-16
Country/TerritoryCzech Republic


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