audiorecorder.h Example File

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 #ifndef AUDIORECORDER_H
 #define AUDIORECORDER_H

 #include <QtCore/qurl.h>
 #include <QtWidgets/qmainwindow.h>

 #include <qmediarecorder.h>

 namespace Ui {
     class AudioRecorder;
 }

 class QAudioRecorder;
 class QAudioProbe;
 class QAudioBuffer;

 QT_USE_NAMESPACE

 class AudioRecorder : public QMainWindow
 {
     Q_OBJECT
 public:
     AudioRecorder(QWidget *parent = 0);
     ~AudioRecorder();

 public slots:
     void processBuffer(const QAudioBuffer&);

 private slots:
     void setOutputLocation();
     void togglePause();
     void toggleRecord();

     void updateState(QMediaRecorder::State);
     void updateProgress(qint64 pos);
     void displayErrorMessage();
     QUrl generateAudioFilePath();

 private:
     static qreal GetPeakValue(const QAudioFormat& format);
     static qreal GetBufferLevel(const QAudioBuffer& buffer);

     template <class T>
     static qreal GetBufferLevel(const T* buffer, int samples);

     Ui::AudioRecorder *ui;

     QAudioRecorder* audioRecorder;
     QAudioProbe* probe;
     bool outputLocationSet;

 };

 #endif