基于matlab环境下的语者识别

[C,L]=wavedec(x,3,'db4'); [thr,sorh,keepapp]=ddencmp('den','wv',x); de_noise=wdencmp('gbl',C,L,'db4',3,thr,sorh,keepapp); xx=de_noise; x1=filter([1 -0.9375],1,xx); x=x1/max(abs(x1)); y=enframe(x,256,80); amp=sum(y.*y,2); temp1=enframe(x(1:length(x)-1),256,80); temp2=enframe(x(2:length(x)),256,80); signs=(temp1.*temp2)<0; diffs=abs(temp1-temp2)>0.02; zcr=sum(signs.*diffs,2); ef=amp.*zcr; amp=amp'; ef=ef'; zcr=zcr'; s1=qishiduandian(ef); s2=jieshuduandian(ef); x2=x((s1-1)*80+1:(s2-1)*80+256);