2、感受声音的变化。该设计还利用MATLAB来读入(采集)语音信号,将它赋值给某一向量。再将该向量看作一个普通的信号,对其进行FFT变换实现频谱分析,再依据实际情况对它进行滤波。关键字:语音信号处理滤波器MATLAB频谱分析Abstract: Speechsignalprocessing a practicalelectronic engineering courses, the voiceis animportantmeans of animportantsourceof human accesstoinformation anduseofinf
3、ormation. The designofthe entry of theoriginalspeechsignal spectralanalysis intheMATLAB softwareplatform; and collected voice signalto interference noise, spectralanalysis, and designappropriate filter to filteroutthenoise signal byadding noise,andthenwe canalso sound comman
4、d to play back thevoicesignal, inorderto feel thechange of the sound up in the hearing. Thedesignalso useMATLABto readintothe(acquisition) voice signal and assignit to a vector. Then the vector as a common signalto the FFTtransform spectrumanalysis,andthen filtering it based
5、 on the actualsituation.Keywords: speechsignalprocessing filter MATLAB spectrumanalysis第33页(共33页)目录目录3第一章绪论41Matlab的简介42Matlab的特点和优势53语音信号处理的意义64语音信号处理的目的与要求65语音信号处理的基本步骤6第二章设计方案论证81设计理论依据8(1)采样定理8(2)采样频率8(3)采样位数与采样频率82语音信号的分析及处理方法9(1)语音的录入与打开9(2)时域信号的FFT分析9(3)数字滤波器设计原理9(4)数