| 基于MATLAB的语谱图显示与分析 |
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| 引用本文： | 李富强
,万红
,黄俊杰.基于MATLAB的语谱图显示与分析[J].微计算机信息,2005(20). |
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| 作者姓名： | 李富强 万红 黄俊杰 |
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| 作者单位： | 郑州大学，郑州大学，郑州大学 郑州解放军信息工程大学 |
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| 基金项目： | 河南省骨干教师资金资助 |
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| 摘 要： | 文章给出了一种基于MATLAB的语谱图显示原理及实现方法。该法可对语音信号(或其它类型的似平稳信号)进行频谱图的伪彩色映射及显示。语谱图的类型有宽带和窄带两种,可按需求设置伪彩色显示的映射。文中介绍了语谱图显示的原理,MATLAB的相关功能函数,并给出了一个程序实例及其实验结果。在MATLAB中进行了仿真,结果表明宽带及窄带语谱图对时间分辨率和频率分辨率的不同反映并且该法对设备要求低,编程简单,可以在普通通用计算机上实现。
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| 关 键 词： | 语谱图 宽带语谱图 窄带语谱图 伪彩色显示 MAT-LAB |
The Display and Analysis of Sonogram Based on MATLAB |
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| Li,Fuqiang WaHong Huang,Junjie.The Display and Analysis of Sonogram Based on MATLAB[J].Control & Automation,2005(20). |
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| Authors: | Li Fuqiang WaHong Huang Junjie |
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| Affiliation: | (School of Electronic Engineering,Zhengzhou University,Zhengzhou 450002 China)Li,Fuqiang WaHong Huang,Junjie |
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| Abstract: | This article introduces the display principle and real-ization of spectrogram based on MATLAB. The spectrogram ofspeech signals and other similar quasi - stationary ones can bedone by this method. There are two kinds of spectrogram: wide-band and narrow- band spectrograms. In addition, different pseu-do- color- mapping displays are optional. It covers the displayprinciple of spectrogram, the correlative functions of MATLABand the source program, as well as the experimental results. Thesimulation in MATLAB turns out that wide- band and narrow-band spectrograms represent different degrees of time and fre-quency resolution, respectively. This method can be implementedeasily without complicated programming based on universal PC. |
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| Keywords: | spectrogram wide - band spectrogram narrow -band spectrogram pseudo- color display MATLAB |
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