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matlab/tfgm/utils/itakura_saito_dist.m

 function IS = itakura_saito_dist(x_ref,x_est)
 %% IS = itakura_saito_dist(x_ref,x_est)
-% The Itakura?Saito distance (or Itakura?Saito divergence).It's measure 
+% The Itakura Saito distance (or Itakura Saito divergence).It's measure
 % of the difference between an original signal x_ref  and an approximation
 % x_est. see [1]
 % Inputs:
-%     - x_ref : original signal
-%     - x_est : estimated signal
+%     - x_ref : Reference signal
+%     - x_est : Estimation of the reference signal
 % Output:
-%     -IS: Itakura SAito measurement.
+%     -IS: Itakura Saito measurement.
 %
 %
 % Reference:

matlab/tfgm/utils/itakura_saito_dist_spectrum.m

 function IS_spectrum= itakura_saito_dist_spectrum(x_ref,x_est)
 
 %% IS_spectrum= itakura_saito_dist_spectrum(x_ref,x_est)
-% The Itakura?Saito distance (or Itakura?Saito divergence).It's measure 
+% The Itakura Saito distance (or Itakura Saito divergence).It's measure
 % of the difference between an original spectrum  and an approximation. see [1]
 % Inputs:
-%     - x_ref : original signal
-%     - x_est : estimated signal
+%     - x_ref : Reference signal
+%     - x_est :  Estimation of the reference signal
 % Output:
 %     -IS: Itakura SAito measurement.
 %