/* CELP voice codec, part of the HawkVoice Direct Interface (HVDI) cross platform network voice library Copyright (C) 2001-2003 Phil Frisbie, Jr. (phil@hawksoft.com) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "celpint.h" void ham(float *win, int n) { int i; for (i = 0; i < n; i++) win[i] = 0.54f - 0.46f * (float)cos((2.0f * M_PI * (i)) / (n-1)); }