The Udu drum, sometimes called the water pot drum, is a traditional Nigerian instrument. Musicians who play the Udu exploit its aerophone and idiophone resonances. This paper will discuss an electrical equivalent circuit model for the Udu Utar, a modern innovation of the traditional Udu, to predict the low frequency aerophone resonances and will also present scanning laser vibrometer measurements to determine the mode shapes of the dominant idiophone resonances. These analyses not only provide an understanding of the unique sound of the Udu instrument but may also be used by instrument designers to create instruments with resonance frequencies at traditional musical intervals for the various tones produced and to create musical harmonic ratios. The information, specifically the laser vibrometry measurements, may also be useful to musicians in knowing the best places to strike the Udu to excite musical tones.
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March 2013
March 06 2013
Equivalent circuit modeling and vibrometry measurements of the Nigerian-origin Udu Utar drum
Brian E. Anderson;
Brian E. Anderson
a)
Acoustics Research Group, Department of Physics and Astronomy, Brigham Young University
, N283 Eyring Science Center, Provo, Utah 84602
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C. Beau Hilton;
C. Beau Hilton
Department of Humanities, Classics, and Comparative Literature, Brigham Young University
, 4110 Joseph F. Smith Building, Provo, Utah 84602
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Frank Giorgini
Frank Giorgini
Udu Incorporated
, 4425 County Route 67, Freehold, New York 12431
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Brian E. Anderson
a)
C. Beau Hilton
Frank Giorgini
Acoustics Research Group, Department of Physics and Astronomy, Brigham Young University
, N283 Eyring Science Center, Provo, Utah 84602a)
Author to whom correspondence should be addressed. Present address: Los Alamos National Laboratory, Geophysics Group (EES-17), MS D446, Los Alamos, New Mexico 87545. Electronic mail: [email protected]
J. Acoust. Soc. Am. 133, 1718–1726 (2013)
Article history
Received:
October 10 2012
Accepted:
January 14 2013
Citation
Brian E. Anderson, C. Beau Hilton, Frank Giorgini; Equivalent circuit modeling and vibrometry measurements of the Nigerian-origin Udu Utar drum. J. Acoust. Soc. Am. 1 March 2013; 133 (3): 1718–1726. https://doi.org/10.1121/1.4789892
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