Acoustics Research Group, Department of Physics and Astronomy, Brigham Young University, N283 Eyring Science Center, Provo, Utah 84602, USA.
J Acoust Soc Am. 2013 Mar;133(3):1718-26. doi: 10.1121/1.4789892.
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.
乌杜鼓，有时也被称为水罐鼓，是一种传统的尼日利亚乐器。演奏乌杜鼓的音乐家利用其气鸣和体鸣共鸣。本文将讨论乌杜乌塔尔（Udu Utar）的等效电路模型，这是对传统乌杜鼓的现代创新，以预测低频气鸣共鸣，并展示扫描激光测振仪的测量结果，以确定主要体鸣共鸣的振型。这些分析不仅提供了对乌杜乐器独特声音的理解，还可以被乐器设计师用来创造具有传统音乐音程的共振频率的乐器，以产生各种音调，并创造音乐和谐比例。这些信息，特别是激光测振仪的测量结果，对于音乐家来说也可能有用，他们可以知道在乌杜上敲击的最佳位置以激发音乐音调。
