This application has been implemented using the Qt framework, as a GUI application, so that we also get a graphical interface for ease of debugging. This debugging UI was designed using the Qt Designer of the Qt Creator IDE as a single UI file.
We start by creating an instance of the GUI application:
#include "mainwindow.h"
#include <QApplication>
int main(int argc, char *argv[]) {
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
} This creates an instance of the MainWindow class in which we have implemented the application, along with an instance of QApplication, which is a wrapper class used by the Qt framework.
Next, this is the MainWindow header:
#include <QMainWindow>
#include <QAudioRecorder>
#include <QAudioProbe>
#include <QMediaPlayer>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow {
Q_OBJECT
public:
explicit MainWindow(QWidget *parent...