Michael Schreiner (www.MichaelSchreiner.eu) |
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Virtual Violin
Together with the diploma student Christian Geiger a phyiscal modeling synthesizer was developped. It is implemented in C++ and realized as a VST-plugin, so that it can be used in many VST-hosts. The synthesizer is the realization of a physical model of the strings of a violin. The differential equations describing the motion of the strings are discretized using finite elements. Our method is different from the usual digital waveguides (see for example the web site of J. O. Smith). Our prototype has the following characteristics:
Our approach has in particular the advantage, that the dynamics at the start of the tone is very realistic. The pictures show the string after 10 ms and 100 ms, respectively. The dashed line marks the position of the bow. It can be seen easily, that at the beginnning of the tone, there are more harmonics, so that the typical scratching of the bow is audible.
An animation of the first 250 ms of the bowed string can be obtained here (mpg, 1.5 MB). And of course there are some examples to listen at:
There are a lot of questions to be answered. If you are interested in a diploma or phd thesis in this field, do not hesitate to contact me. |