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#include <math.h>

#include <QObject>

#include <QMainWindow>

#include <QIODevice>

#include <QTimer>

#include <QPushButton>

#include <QComboBox>

#include <QAudioOutput>

class Generator : public QIODevice

{

    Q_OBJECT

public:

    ~Generator();

    void start();

    void stop();

    qint64 readData(char *data, qint64 maxlen);

    qint64 writeData(const char *data, qint64 len);

private:

};

class AudioTest : public QMainWindow

{

    Q_OBJECT

public:

    AudioTest();

    ~AudioTest();

private slots:

};