#include <QtCore/QCoreApplication>
#include <QtCore/QDebug>
#include <QtMultimedia/QAudioDeviceInfo>

int main(int argc, char **argv)
{
   QCoreApplication a(argc, argv);
   auto l = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);

   for (auto i = l.constBegin(); i != l.constEnd(); ++i)
        qDebug() << "AUDIO" << (*i).deviceName();

   return 0;
}