main.m

用matlab做的一个语音信号通过滤波器分析,对大家的学习的作用会很大的

clear all;
[t,tdata]=squr;
figure(1);
[f,fdata]=sfouri(t,tdata);
tdata=sifouri(f,fdata)
[t,tdata,NBITS]=sload('1.wav');
figure(1);
[f,fdata]=sfouri(t,tdata);
figure(1);
lfdata=slowpassf(f,fdata,500);
figure(1);
hfdata=shighpassf(f,fdata,2000);
figure(1);
[t,ldata]=sifouri(f,lfdata);
figure(1);
[t,hdata]=sifouri(f,hfdata);
ssave(t,ldata,'低通滤波.wav',NBITS);
ssave(t,hdata,'高通滤波.wav',NBITS);