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Method for measuring violin sound radiation based on bowed glissandi and its application to sound synthesis

Title Method for measuring violin sound radiation based on bowed glissandi and its application to sound synthesis
Publication Type Journal Article
Year of Publication 2011
Authors Pérez, A. , Bonada J. , Pätynen J. , & Välimäki V.
Journal Title Journal of the Acoustical Society of America
Volume 130
Issue 2
Pages 1020-1029
Journal Date 08/2011
Start Page 1020
ISSN 0001-4966
Abstract This work presents a method for measuring and computing violin-body directional frequency responses, which are used for violin sound synthesis. The approach is based on a frame-weighted deconvolution of excitation and response signals. The excitation, consisting of bowed glissandi, is measured with piezoelectric transducers built into the bridge. Radiation responses are recorded in an anechoic chamber with multiple microphones placed at different angles around the violin. The proposed deconvolution algorithm computes impulse responses that, when convolved with any source signal (captured with the same transducer), produce a highly realistic violin sound very similar to that of a microphone recording. The use of motion sensors allows for tracking violin movements. Combining this information with the directional responses and using a dynamic convolution algorithm, helps to improve the listening experience by incorporating the violinist motion effect in stereo.
preprint/postprint document http://hdl.handle.net/10230/41645
Final publication http://dx.doi.org/10.1121/1.3605291