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LPSynthesisFilter.h
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LPSynthesisFilter.h
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/*
LPSynthesisFilter.h
Copyright (C) 2011 Belledonne Communications, Grenoble, France
Author : Johan Pascal
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef LPSYNTHESISFILTER_H
#define LPSYNTHESISFILTER_H
/*****************************************************************************/
/* LPSynthesisFilter : as decribed in spec 4.1.6 eq77 */
/* parameters: */
/* -(i) excitationVector: u(n), the excitation, 40 values in Q0 */
/* -(i) LPCoefficients: 10 LP coefficients in Q12 */
/* -(i/o) recontructedSpeech: 50 values in Q0 */
/* [-NB_LSP_COEFF, -1] of previous values as input */
/* [0, L_SUBFRAME[ as output */
/* */
/*****************************************************************************/
void LPSynthesisFilter (word16_t *excitationVector, word16_t *LPCoefficients, word16_t *reconstructedSpeech);
#endif /* ifndef LPSYNTHESISFILTER_H */