请大侠看看错在哪里
=wavread('eng.wav',);=wavread('out.wav',);
=wavread('daish_01.wav',);
=wavread('drive.wav',);
fs=6000;
nfft=65536;
window=boxcar(nfft/8);
noverlap=0;
p=1;
=psd(x1,nfft,fs,window,noverlap,p);
=psd(y,nfft,fs,window,noverlap,p);
Px1y=csd(x1,y,nfft,fs,window,noverlap);
index=0:round(nfft/2-1);
k=index*fs/nfft;
plot_Px1y=10*log10(Px1y(index+1));
r1y2=(abs(Px1y)).^2/(Px1x1.*Pyy);
r1y=sqrt(r1y2);
figure(1)
plot(k,r1y(index+1));
??? Error using ==> mrdivide
Out of memory. Type HELP MEMORY for your options.
上面是对一组声音的分析，x1,x2,x3,y是声音文件在计算r1y2=(abs(Px1y)).^2/(Px1x1.*Pyy);时就会提示??? Error using ==> mrdivide
Out of memory. Type HELP MEMORY for your options.不计算它时就不会报错。小弟初学者，请大侠指导下。另外 ，想知道对求自谱互谱的参数有没有什么不对的 拜谢了
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