(feature_size, add_delta_deltas=True)
return sums, square, count
init sums, squares and cout of feature statistic
init sums, squares and cout of feature statistic
init sums squares and cout of feature statistic
def create_cmvn_statis(feature_size, add_delta_deltas=True):
  ''' init sums, squares and cout of feature statistic '''
  sums = np.zeros([1, feature_size, 3 if add_delta_deltas else 1],
                  dtype=np.float64)
  square = np.zeros([1, feature_size, 3 if add_delta_deltas else 1],
                    dtype=np.float64)
  count = 0.0
  return sums, square, count
def create_cmvn_statis ( feature_size , add_delta_deltas = True ) : sums = np . zeros ( [ 1 , feature_size , 3 if add_delta_deltas else 1 ] , dtype = np . float64 ) square = np . zeros ( [ 1 , feature_size , 3 if add_delta_deltas else 1 ] , dtype = np . float64 ) count = 0.0 return sums , square , count