aes.h

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/*
 * This file is part of the Wave Arts VQE library.
 * Copyright (C) 2011 Wave Arts, Inc. (http://wavearts.com)
 *
 * VQE 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.
 *
 * VQE 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.
 *
 * A copy of the GNU General Public License is included with VQE,
 * and can be found online at <http://www.gnu.org/licenses/>.
 *
 * If you'd like to distribute a closed-source product which uses VQE,
 * you must obtain a commercial VQE license from Wave Arts.
 */
//
// Acoustic Echo Suppression, based on echosupp.m matlab script.
//
// Bill Gardner, Sep 2010
//



#ifndef _AES_H
#define _AES_H

#include <stdio.h>
#include "dre.h"
#include "AecLatCal.h"
#include "EQ.h"

typedef struct {
        float sampRate; 
        int blockLen;   
        float envTime;  
        float activeThreshDb;   
        float dtThreshDb;               
        float nearTalkHoldTime; 
        float maxLatencyTime;   
        float echoGainAvgTime;  
} AesParam;

typedef struct {
        AesParam param;                         
        float blockTime;                        
        int nearTalk;                           
        int nearTalkHoldBlocks;         
        int nearTalkHold;                       
        float refEnvGain;                       
        float refEnv;                           
        float echoGain;         
        float *xin;                     
        float *xDelay;          
        int xIndex;                     
        int maxLatency;         
        Dre *nearDre;           
        Dre *farDre;            
        Avg *nearAvg;           
        Avg *farAvg;            
        int latency;            
        int trainNearOnEcho;    
        int blockIndex;         
        // AC-coupling HPF EQ
        EqState hpfZ[2];                
        Eq2Coeff hpfCoeff;              
        int dumpMatlabData;     
        FILE *matFp;            
} Aes;

#ifdef  __cplusplus
extern "C" {
#endif

Aes *AesNew(AesParam *param);

void AesDelete(Aes *p);

void AesReset(Aes *p);

void AesProc(Aes *p, float *ref, float *rec);

void AesSetLatency(Aes *p, int latency);

void AesGetDefaultParam(AesParam *p);

void AesSetMatlabDump(Aes *p, int dumpData, char *path);

#ifdef  __cplusplus
}
#endif

#endif