MATLAB的语音信号频谱分析

An Analysis of MATLAB Speech Signal Spectrum

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 utility engineering software with powerful graphic display interface and scientific computing power. By using MATLAB software, speech signal can be analyzed and displayed based on short-time spectrum of fast Fourier transform(FFT). In this paper, through an instance, this paper introduces the collection of speech signal, analysis of signal spectrum and display of spectrum graph.