Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.
J Acoust Soc Am. 2010 Jul;128(1):466-73. doi: 10.1121/1.3442576.
The mechanical admittance of the soundboards of four full-size concert harps from three manufacturers was measured, and the results show that there is little variation between them. More detailed vibro-acoustic data were then obtained for an Aoyama Amphion harp. Analysis of these data show that the individual soundholes amplify the radiated sound in successive frequency bands associated with the modal frequencies of the soundboard. The lower holes tend to contribute at the lower end of the frequency scale, and the higher holes at the higher end of the scale.
对来自三个制造商的四架全尺寸音乐会竖琴的音板的力学导纳进行了测量，结果表明它们之间几乎没有变化。然后，为一台青山 Amphion 竖琴获得了更详细的声振数据。对这些数据的分析表明，各个音孔会在与音板模态频率相关的连续频带中放大辐射声音。较低的音孔往往在频率范围的低端产生影响，而较高的音孔则在频率范围的高端产生影响。
