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/***************************************************************************
* Copyright (C) 2005 by Olivier Goffart *
* [email protected] *
* *
* 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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef SIGNATURE_H
#define SIGNATURE_H
#include <qmemarray.h>
#include <qmap.h>
#include <kdemacros.h>
class Sound;
class KConfigBase;
#define WINDOW_MINIMUM 0.10
#define WINDOW_MINIMUM_ECART 200
#define WINDOW_NUMBER 7
#define WINDOW_SUPER 0.43
#define WINDOW_UNIT sound.fs()/4
#define FOUR_NUMBER 7
#define FOUR_SUPER 0
#define FFT_RANGE_INF 370
#define FFT_RANGE_SUP 2000
// #define FFT_PONDERATION(f) ((double)log(1+(f))/log(10))
#define FFT_PONDERATION(f) 1
// theses settings are better in a 8000Hz fs
/*#define FFT_RANGE_INF 300
#define FFT_RANGE_SUP 1500*/
//#define REJECT_FACTOR_ECART_REL 0.5
#define REJECT_FACTOR_DIFF 0.0018
#define HAMMING false
namespace KHotKeys
{
/**
@author Olivier Goffart
*/
class KDE_EXPORT VoiceSignature{
public:
explicit VoiceSignature(const Sound& s);
VoiceSignature(){}
~VoiceSignature();
QMap<int, QMap<int, double> > data;
static QMap<int, QMap<int, double> > pond;
static float diff(const VoiceSignature &s1, const VoiceSignature &s2);
static int size1();
static int size2();
static QMemArray<double> fft(const Sound& sound, unsigned int start, unsigned int stop);
static bool window(const Sound& sound, unsigned int *start, unsigned int *stop);
void write(KConfigBase *cfg, const QString &key) const;
void read(KConfigBase *cfg, const QString &key);
inline bool isNull() const
{
return data.isEmpty();
}
};
}
#endif
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