Analyze and test violin's tonal quality from holographic pattern

Hengsheng Zhu

doi:10.1117/12.172649

1 May 1994 Analyze and test violin's tonal quality from holographic pattern

Hengsheng Zhu

Proceedings Volume 2176, Practical Holography VIII; (1994) https://doi.org/10.1117/12.172649
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

Abstract

The frequency response curve--laser holographic method which studies the tonal quality of violin's and musical instruments. The method is based on macro measure of frequency response curve and full used sensitivity of laser holograph on weak vibration. We have analyzed violins of different tonal quality and have summarized fine violin's holographic mode. A new measuring method on tonal quality of musical instruments is being developed. We take the microscopic holograms of a violin when it is being vibrated (time--average method), and also with the frequency response curve, to analyze and measure a violin's vibration, to calculate the amplitude of the top and back plate of a violin, to find out the plate of a violin's plate where is should be repaired and micro quantity (micrometer), to change the interval of a violin's box (top and back plate) to improve the violin's tonal quality, to explore the quantitative rules of a whole violin's fine quality.

Citation Download Citation

Hengsheng Zhu "Analyze and test violin's tonal quality from holographic pattern", Proc. SPIE 2176, Practical Holography VIII, (1 May 1994); https://doi.org/10.1117/12.172649

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