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Vibration 2018, 1(1), 3-19; https://doi.org/10.3390/vibration1010002

Frequency Measurement of Musical Instrument Strings Using Piezoelectric Transducers

1
The Old Forge, Burnt House Lane, Battisford, Suffolk IP14 2ND, UK
2
Department of Engineering, University of Cambridge, Trumpington St, Cambridge CB2 1PZ, UK
The authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 28 November 2017 / Revised: 18 December 2017 / Accepted: 9 January 2018 / Published: 13 January 2018
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Abstract

The use of a piezoelectric transducer to monitor the tuning of a musical instrument string has been investigated. It has been shown that the transverse resonance frequencies of the string can be identified by electrical measurements on a low-cost actuator/sensor, sufficiently discreetly to be done during a performance. This frequency measurement approach can be used as the basis for a tuning control mechanism to maintain a musical instrument string at the required pitch, without it having to be plucked or played. Such a system would be of direct benefit to harp players in particular, who have no other means to adjust a mistuned string during a performance. Some of the practical issues and implications of adding such a tuning control system to the harp are considered. View Full-Text
Keywords: string; tuning; harp; piezoelectric; resonance string; tuning; harp; piezoelectric; resonance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lynch-Aird, N.; Woodhouse, J. Frequency Measurement of Musical Instrument Strings Using Piezoelectric Transducers. Vibration 2018, 1, 3-19.

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