lsfxlpi.m

ITU-T G.723.1 Speech Coder: Matlab implementation This package implements the speech coder and de

function aI = LSFxLPI (lsf, lsfP, LSFpar)
% Interpolate the LSF vectors, convert to LP

% $Id: LSFxLPI.m 1.1 2004/07/09 G.723.1-v2r1a $

% Interpolate LSF's
N = length (LSFpar.IntC);
for (i = 1:N)
  a = LSFpar.IntC(i);
  lsfI(:,i) = (1 - a) * lsfP + a * lsf;
end

% Convert to LP coefficients
aI = LSFxLP (lsfI, LSFpar);

return