ham.h

来自「g729 coding ipaddressing」· C头文件 代码 · 共 44 行

/**************************************************************************
*
* ROUTINE
*				ham
*
* FUNCTION
*				creates hamming window
*
* SYNOPSIS
*				subroutine ham(win, n)
*	formal 
*
*						data	I/O
*		name			type	type	function
*		-------------------------------------------------------------------
*		win(n)			float	i/o 	hamming window
*		n				int 	i		dim of win
*
***************************************************************************
*
* DESCRIPTION
*
*
*
***************************************************************************
*
* CALLED BY
*
*		celp  delay
*
* CALLS
*
*
*
**************************************************************************/

static void ham(float win[], int n)
{
  int i;

  for (i = 0; i < n; i++)
	win[i] = (float) (0.54 - 0.46 * cos((2.0 * CELP_PI * (i)) / (n-1)));
}