The normal modes of the violin system are investigated by studying its response to external excitation by an incident sinusoidal sound wave of variable frequency. Appropriate transducers are used to sense the vibration of wood, air, and strings. The data are analyzed by computer to yield information on the complex eigenfrequencies and eigenfunctions of the various normal modes. Methods of minimizing errors due to resonances outside the frequency window are discussed. Some representative results are shown.
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Arnold et al. (1982) studied this question.
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