session-ios/Libraries/spandsp/spandsp/spandsp/private/awgn.h

47 lines
1.3 KiB
C

/*
* SpanDSP - a series of DSP components for telephony
*
* private/awgn.h - An additive Gaussian white noise generator
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2001 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1,
* as published by the Free Software Foundation.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: awgn.h,v 1.1 2008/11/30 12:38:27 steveu Exp $
*/
#if !defined(_SPANDSP_PRIVATE_AWGN_H_)
#define _SPANDSP_PRIVATE_AWGN_H_
/*!
AWGN generator descriptor. This contains all the state information for an AWGN generator.
*/
struct awgn_state_s
{
double rms;
long int ix1;
long int ix2;
long int ix3;
double r[98];
double gset;
int iset;
};
#endif
/*- End of file ------------------------------------------------------------*/