摘要
三分之一倍频程是常用的声学信号处理方法,也是心理声学指标计算的基础。使用不同的三分之一倍频程的中心频率和带宽的定义方法会使数据分析结果产生较大影响。本文推导了常用的三种三分之一倍频程的定义方法,根据实验数据分析了使用不同方法导致的计算结果差异,并提出了保持数据一致性的建议。
1/3 octave is a commonly used acoustic signal processing method,and is also the basis of psychoacoustic index calculation. Using different definitions of the central frequency and bandwidth of one third of the octave,the results of data analysis will be quite effect. In this paper,three commonly used methods for defining1/3 octave frequency range are deduced. Based on the experimental data,the differences of calculation results caused by different methods are analyzed,and some suggestions for maintaining data consistency are put forward.
作者
王玉洁
惠节
WANG Yujie;HUI Jie(Institute of Marine Engineering,Jiangsu Maritime Vocational and Technical College,Nanjing 211100,China)
出处
《现代信息科技》
2019年第3期164-167,共4页
Modern Information Technology
关键词
倍频程
中心频率
带宽
octave
central frequency
bandwidth
