摘要
为了建立更精确的笙的物理模型,以传统笙苗为实验对象,通过控制改变输入气流的压强大小和方向,采用多通道同步方式测量了其在单独发声情况下的簧片振动速度,笙脚内声压以及音窗附近声音信号。通过对声频谱的分析,获得了笙的簧片振动特性和声音特征,证实了吹吸音色差异的存在。最后对比仿真和实验结果,指出现存模型存在的问题,为下一步细化模型打下基础。
To build a physical model of Sheng more accurately, the reed velocity, the shallot pressure and the radiated sound of individual Sheng pipes are measured simultaneously by varying the input pressure in both directions.The characteristics of reed vibration and radiated sound are analyzed through the evaluation of sound spectra.It confirms the difference of Sheng timbre between blowing condition and drawing condition.The comparison between simulation and measurement shows the problem of the existed physical model and provides some ideas for the next modification.
出处
《电声技术》
2016年第6期44-47,共4页
Audio Engineering
基金
国家自然科学基金项目(11174317)
关键词
笙
自由簧
物理模型
时域建模
sheng
free reed
physical model
time-domain simulation
