Signal Processing Library

Program name: window_preemphasis

Language: C

In file: window_lib.c

Objective: Calculate preemphasis in window.

Usage: void window_preemphasis(double *d_window_i, int window_size, double **d_window_o);

Parameters:

• d_window_i - The input double window
• window_size - The size of the window
• d_window_o - The output double window

• void

Mathematical Description:

Comments: Routine to calculate preemphasis

User Comments

Code:

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;
}