A Real-Time Interactive Physical Model of the Langeleik using Finite Difference Schemes and Web Audio

Published in 2nd Nordic Sound and Music Computing Conference, 2021

The Langeleik is a stringed folk instrument consisting of one fretted melody string and a number of drone strings. In this paper we present the use of finite difference schemes (FDS) to implement a physical model of the Langeleik as a real-time, interactive web application using JavaScript and Web Audio. Hammer-on/pull-off interactions are modeled using non-iterative collision methods. The user interacts with the model by strumming with a mouse or touchpad, and pressing the frets with a computer keyboard. Accord- ing to a qualitative evaluation of the application, the sound quality is satisfactory, but the design of the interaction can be improved to provide a more intuitive experience.

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Recommended citation: Südholt, David and Lyster, Søren V.K. and Winkel, Oliver B. and Serafin, Stefania. (2021). “ Real-Time Interactive Physical Model of the Langeleik using Finite Difference Schemes and Web Audio,” in: Proc. 2nd Nordic Sound and Music Comp. Conf.