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MATLAB是一款具有强大的图形显示界面和科学计算能力的工程实用软件,利用MATLAB软件,可以对语音信号进行基于快速傅立叶变换(英文缩写FFT)的短时频谱分析和显示。本文通过一个实例,介绍了语音信号的采集、信号的频谱分析和频谱图的显示。
MATLAB is a powerful graphical display interface and scientific computing capabilities of engineering software, the use of MATLAB software, the speech signal can be based on Fast Fourier Transform (abbreviated FFT) short-term spectrum analysis and display. This article through an example, introduced the speech signal acquisition, signal spectrum analysis and spectrum display.