function out = TailCorr(alpha,beta,iir_in,YStartState,sel_double)

len = length(iir_in);
N = length(alpha);

iir_inR1 = cat(1,0,iir_in(1:end-1,1));

diff = iir_in - iir_inR1;

Ystart = YStartState;

for i = 1:1:N
    y(1:len,i) = MyIIR(alpha(i),beta(i),diff,Ystart,sel_double);
    y = floor(y);
end

switch sel_double 

    case 0
        y_sum = int64(sum(y,2));      

    case 1
        y_sum = double(sum(y,2));      

end

out = iir_in+y_sum;