diff --git a/src/analyzerconsole.cpp b/src/analyzerconsole.cpp
index d1648646..5e84d1bf 100644
--- a/src/analyzerconsole.cpp
+++ b/src/analyzerconsole.cpp
@@ -71,8 +71,8 @@ CAnalyzerConsole::CAnalyzerConsole ( CClient* pNCliP,
 
     // Connections -------------------------------------------------------------
     // timers
-    QObject::connect ( &TimerErrRateUpdate, SIGNAL ( timeout() ),
-        this, SLOT ( OnTimerErrRateUpdate() ) );
+    QObject::connect ( &TimerErrRateUpdate, &QTimer::timeout,
+        this, &CAnalyzerConsole::OnTimerErrRateUpdate );
 }
 
 void CAnalyzerConsole::showEvent ( QShowEvent* )
diff --git a/src/clientsettingsdlg.cpp b/src/clientsettingsdlg.cpp
index 50e24e33..eecd5d26 100755
--- a/src/clientsettingsdlg.cpp
+++ b/src/clientsettingsdlg.cpp
@@ -400,26 +400,26 @@ CClientSettingsDlg::CClientSettingsDlg ( CClient* pNCliP, QWidget* parent,
         this, &CClientSettingsDlg::OnNewClientLevelEditingFinished );
 
     // combo boxes
-    QObject::connect ( cbxSoundcard, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnSoundcardActivated ( int ) ) );
+    QObject::connect ( cbxSoundcard, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CClientSettingsDlg::OnSoundcardActivated );
 
-    QObject::connect ( cbxLInChan, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnLInChanActivated ( int ) ) );
+    QObject::connect ( cbxLInChan, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CClientSettingsDlg::OnLInChanActivated );
 
-    QObject::connect ( cbxRInChan, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnRInChanActivated ( int ) ) );
+    QObject::connect ( cbxRInChan, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CClientSettingsDlg::OnRInChanActivated );
 
-    QObject::connect ( cbxLOutChan, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnLOutChanActivated ( int ) ) );
+    QObject::connect ( cbxLOutChan, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CClientSettingsDlg::OnLOutChanActivated );
 
-    QObject::connect ( cbxROutChan, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnROutChanActivated ( int ) ) );
+    QObject::connect ( cbxROutChan, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CClientSettingsDlg::OnROutChanActivated );
 
-    QObject::connect ( cbxAudioChannels, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnAudioChannelsActivated ( int ) ) );
+    QObject::connect ( cbxAudioChannels, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CClientSettingsDlg::OnAudioChannelsActivated );
 
-    QObject::connect ( cbxAudioQuality, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnAudioQualityActivated ( int ) ) );
+    QObject::connect ( cbxAudioQuality, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CClientSettingsDlg::OnAudioQualityActivated );
 
     // buttons
     QObject::connect ( butDriverSetup, &QPushButton::clicked,
diff --git a/src/connectdlg.cpp b/src/connectdlg.cpp
index 6e716a4b..6623cca5 100755
--- a/src/connectdlg.cpp
+++ b/src/connectdlg.cpp
@@ -169,8 +169,8 @@ CConnectDlg::CConnectDlg ( CClient*        pNCliP,
     QObject::connect ( cbxServerAddr, &QComboBox::editTextChanged,
         this, &CConnectDlg::OnServerAddrEditTextChanged );
 
-    QObject::connect ( cbxCentServAddrType, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnCentServAddrTypeChanged ( int ) ) );
+    QObject::connect ( cbxCentServAddrType, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CConnectDlg::OnCentServAddrTypeChanged );
 
     // check boxes
     QObject::connect ( chbExpandAll, &QCheckBox::stateChanged,
diff --git a/src/server.cpp b/src/server.cpp
index 0945fe43..1d5bcfcb 100755
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -59,8 +59,8 @@ CHighPrecisionTimer::CHighPrecisionTimer ( const bool bNewUseDoubleSystemFrameSi
     veciTimeOutIntervals[2] = 0;
 
     // connect timer timeout signal
-    QObject::connect ( &Timer, SIGNAL ( timeout() ),
-        this, SLOT ( OnTimer() ) );
+    QObject::connect ( &Timer, &QTimer::timeout,
+        this, &CHighPrecisionTimer::OnTimer );
 }
 
 void CHighPrecisionTimer::Start()
diff --git a/src/serverdlg.cpp b/src/serverdlg.cpp
index 3b6c9c0b..a23d36fb 100755
--- a/src/serverdlg.cpp
+++ b/src/serverdlg.cpp
@@ -357,11 +357,11 @@ lvwClients->setMinimumHeight ( 140 );
         this, &CServerDlg::OnLocationCityTextChanged );
 
     // combo boxes
-    QObject::connect ( cbxLocationCountry, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnLocationCountryActivated ( int ) ) );
+    QObject::connect ( cbxLocationCountry, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CServerDlg::OnLocationCountryActivated );
 
-    QObject::connect ( cbxCentServAddrType, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnCentServAddrTypeActivated ( int ) ) );
+    QObject::connect ( cbxCentServAddrType, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CServerDlg::OnCentServAddrTypeActivated );
 
     // push buttons
     QObject::connect ( pbtNewRecording, &QPushButton::released,
diff --git a/src/socket.cpp b/src/socket.cpp
index b87f9d5f..36b63dd8 100755
--- a/src/socket.cpp
+++ b/src/socket.cpp
@@ -117,8 +117,8 @@ void CSocket::Init ( const quint16 iPortNumber )
         QObject::connect ( this, &CSocket::ProtcolCLMessageReceived,
             pChannel, &CChannel::OnProtcolCLMessageReceived );
 
-        QObject::connect ( this, SIGNAL ( NewConnection() ),
-            pChannel, SLOT ( OnNewConnection() ) );
+        QObject::connect ( this, static_cast<void (CSocket::*)()> ( &CSocket::NewConnection ),
+            pChannel, &CChannel::OnNewConnection );
     }
     else
     {
@@ -130,8 +130,8 @@ void CSocket::Init ( const quint16 iPortNumber )
         QObject::connect ( this, &CSocket::ProtcolCLMessageReceived,
             pServer, &CServer::OnProtcolCLMessageReceived );
 
-        QObject::connect ( this, SIGNAL ( NewConnection ( int, CHostAddress ) ),
-            pServer, SLOT ( OnNewConnection ( int, CHostAddress ) ) );
+        QObject::connect ( this, static_cast<void (CSocket::*) ( int, CHostAddress )> ( &CSocket::NewConnection ),
+            pServer, &CServer::OnNewConnection );
 
         QObject::connect ( this, &CSocket::ServerFull,
             pServer, &CServer::OnServerFull );
diff --git a/src/util.cpp b/src/util.cpp
index 9ede9148..f475f812 100755
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -731,17 +731,17 @@ CMusProfDlg::CMusProfDlg ( CClient* pNCliP,
     QObject::connect ( pedtAlias, &QLineEdit::textChanged,
         this, &CMusProfDlg::OnAliasTextChanged );
 
-    QObject::connect ( pcbxInstrument, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnInstrumentActivated ( int ) ) );
+    QObject::connect ( pcbxInstrument, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CMusProfDlg::OnInstrumentActivated );
 
-    QObject::connect ( pcbxCountry, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnCountryActivated ( int ) ) );
+    QObject::connect ( pcbxCountry, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CMusProfDlg::OnCountryActivated );
 
     QObject::connect ( pedtCity, &QLineEdit::textChanged,
         this, &CMusProfDlg::OnCityTextChanged );
 
-    QObject::connect ( pcbxSkill, SIGNAL ( activated ( int ) ),
-        this, SLOT ( OnSkillActivated ( int ) ) );
+    QObject::connect ( pcbxSkill, static_cast<void (QComboBox::*) ( int )> ( &QComboBox::activated ),
+        this, &CMusProfDlg::OnSkillActivated );
 
     QObject::connect ( butClose, &QPushButton::clicked,
         this, &CMusProfDlg::accept );