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function LPC(Signal, Order, fs); 
 
% autocorrelation, P lag coefficients % 
 
autocorr_Signal=[]; 
for i=1 : Order 
        tmp =0; 
        for(j=1 : (length(Signal)) - i) 
                tmp= tmp+Signal(i) * Signal(i+j); 
        end 
        autocorrelation_Signal(i)=tmp; 
end 
autocorrelation_max=autocorrelation_Signal(1);