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-/****************************************************************************
-**
-** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef VOICEANALYZER_H
-#define VOICEANALYZER_H
-
-#include <QObject>
-#include <QAudioFormat>
-#include <QDebug>
-#include <QtCore/qmath.h>
-#include <QtCore/qendian.h>
-#include <QVariant>
-
-#include "constants.h"
-#include "fastfouriertransformer.h"
-#include "math.h"
-
-class VoiceAnalyzer : public QIODevice
-{
- Q_OBJECT
-public:
- VoiceAnalyzer(const QAudioFormat &format, QObject *parent = 0);
- qint64 readData(char *data, qint64 maxlen);
- qint64 writeData(const char *data, qint64 maxlen);
- void start(qreal frequency);
- void stop();
- qreal frequency();
- int getMaximumVoiceDifference();
- int getMaximumPrecisionPerNote();
-
-public slots:
- void setCutOffPercentage(qreal cutoff);
-
-private:
- const QAudioFormat m_format;
- QList<qint16> m_samples;
- int m_totalSampleCount;
- int m_maximumVoiceDifference;
-
- qint16 getValueInt16(const uchar *ptr);
- int m_stepSize;
- qreal m_frequency;
- qint64 m_position;
- FastFourierTransformer *m_fftHelper;
- void analyzeVoice();
-signals:
- void voiceDifference(QVariant frequency);
- void correctFrequency();
- void lowVoice();
-
-public slots:
-
-};
-
-
-#endif // VOICEANALYZER_H