Department of Electrical and Computer Engineering, University of the West Indies, Trinidad and Tobago, West Indies.
J Acoust Soc Am. 2012 Feb;131(2):1558-65. doi: 10.1121/1.3675974.
The sound-field of a Caribbean low tenor steelpan is examined using nearfield acoustical holography (NAH). The particular instrument, a Bertrand Kelman low tenor, has been previously examined in a single plane using a four microphone sound intensity technique. This paper will examine the sound radiation in a cuboid space enclosing the instrument at three frequencies. Presented will be the results of sound pressure level (SPL), active acoustic intensity (AI), and reactive acoustic intensity (RI) obtained through application of the NAH technique. The limitations of NAH when applied to an irregularly shaped object such as a tenor steelpan will also be presented.
使用近场声学全息术（NAH）研究加勒比海低音钢鼓的声场。该乐器为 Bertrand Kelman 低音钢鼓，之前曾使用四麦克风声强技术在单个平面上进行过检查。本文将在包含乐器的长方体空间中检查三个频率的声音辐射。将介绍通过 NAH 技术获得的声压级（SPL）、有源声强（AI）和反应声强（RI）的结果。还将介绍 NAH 应用于不规则形状物体（如低音钢鼓）时的局限性。
