Numerical Simulation of Tanpura String Vibrations

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  • isma14a

    Author final version (often known as postprint) , 1 MB, PDF-document

    12/07/2014

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A numerical model of a tanpura string is presented, based on a recently developed, stability-preserving way of incorporating the non-smooth forces involved in the impactive distributed contact between the string and the bridge. By defining and modelling the string-bridge contact over the full length of the bridge, the simulated vibrations can be monitored through the force signals at both the bridge and the nut. As such it offers a reference model for both measurements and sound synthesis. Simulations starting from different types of initial conditions demonstrate that the model reproduces the main characteristic feature of the tanpura, namely the sustained appearance of a precursor in the force waveforms, carrying a band of overtones which decrease in frequency as the string vibrations decay. Results obtained with the numerical model are used to examine, through comparison, the effect of the bridge and of the thread on the vibrations.
Original languageEnglish
Publication date11 Jul 2014
Number of pages5
StatePublished

Conference

ConferenceISMA
CountryFrance
CityLe Mans
Period07/07/201411/07/2014

ID: 10528685