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diff --git a/demos/mobile/guitartuner/src/voiceanalyzer.h b/demos/mobile/guitartuner/src/voiceanalyzer.h
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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtDeclarative module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-**     the names of its contributors may be used to endorse or promote
-**     products derived from this software without specific prior written
-**     permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#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