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本文介绍一种声谱分析及显示方法,旨在使用计算机对语声或其他类似信号进行综合研究的环境下,获得象在实验室中使用语图仪和示波器那样方便而且直观的分析手段。本方法利用计算机的图形显示器以人机对话形式进行信号频谱和波形分析。除了显示时间波形外,它可以显示辉度调制、透视和等值线等三种形式的时变功率谱图,对已生成的谱图还可进一步解剖截面和定量分析,允许用户任意指定的作图参数达15种。
This article describes a spectroscopic analysis and display method designed to provide convenient and intuitive analysis tools such as the use of a phonograph and an oscilloscope in a laboratory, using a computer in a comprehensive study of speech or other similar signals. The method uses computer graphical display to conduct signal spectrum and waveform analysis in man-machine dialogue mode. In addition to displaying time waveforms, it can display three forms of time-varying power spectrum, such as luminance modulation, perspective and contouring. The generated spectra can be further dissected cross-section and quantitative analysis, allowing the user to specify any of the Figure parameters up to 15 species.