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function y=ica_con(x) 
%2006.15 
[length,dim]=size(x); 
NFFT=512; 
OVERLAP=492; 
win=hamming(NFFT); 
 
FL = floor((LENGTH-NFFT)/(NFFT-OVERLAP))+1; 
DL = (SPLEN-1)*(NFFT-OVERLAP)+NFFT; 
NF = NFFT/2+1;