replace Arecord with Qtmultimedia (requiers pulse?)

power.cpp

@@ -1,6 +1,14 @@
 #include "power.h"
+#include <QProcess>
 
-Power::Power(QObject *parent) : QObject(parent)
+Power::Power(QSettings *settings, Microcontroller* micro, QObject *parent) : QObject(parent), _micro(micro), _settings(settings)
 {
 
 }
+
+void Power::syncoff()
+{
+    _settings->sync();
+    for(unsigned int i = 0; i < _micro->getLastState().size(); i++) _micro->relayOff(i);
+    QProcess::execute ( "syncoff" );
+}