window_preemphasis

Digital Signal Processing Library

Voice Lab

window_preemphasis

void window_preemphasis(double *d_window_i, int window_size, double **d_window_o)
{
 int i;

 (*d_window_o)[0] = d_window_i[0];

 for(i = 1; i < window_size; i++) {
  (*d_window_o)[i] = d_window_i[i] - 0.95*d_window_i[i-1];
 }
 return;
}