diff --git a/.travis.yml b/.travis.yml
index f0f86dd..fc0e343 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,7 +12,7 @@ addons:
       - freeglut3-dev
       - libhamlib-dev
 script: 
-    - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install hamlib; done
+    - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install hamlib; fi
     - bash travis-ci/build_liquiddsp.sh
     - bash travis-ci/build_soapysdr.sh
     - bash travis-ci/build_wxwidgets.sh
diff --git a/src/AppFrame.cpp b/src/AppFrame.cpp
index 0248d64..a89a70a 100644
--- a/src/AppFrame.cpp
+++ b/src/AppFrame.cpp
@@ -2405,7 +2405,7 @@ void AppFrame::OnUnSplit(wxSplitterEvent& event)
     event.Veto();
 }
 
-void AppFrame::OnAboutDialogClose(wxCommandEvent& event) {
+void AppFrame::OnAboutDialogClose(wxCommandEvent& /* event */) {
     aboutDlg->Destroy();
     aboutDlg = nullptr;
 }
diff --git a/src/ModemProperties.cpp b/src/ModemProperties.cpp
index 4fa02df..1c2c8c0 100644
--- a/src/ModemProperties.cpp
+++ b/src/ModemProperties.cpp
@@ -73,17 +73,17 @@ void ModemProperties::initDefaultProperties() {
             i++;
         }
         
-        int defaultDevice = 0;
-        int dc = 0;
+        // int defaultDevice = 0;
+        // int dc = 0;
         
         for (auto mdevices_i : audioOutputDevices) {
             outputOpts.push_back(std::to_string(mdevices_i.first));
             outputOptNames.push_back(mdevices_i.second.name);
             
-            if (mdevices_i.second.isDefaultOutput) {
-                defaultDevice = dc;
-            }
-            dc++;
+            // if (mdevices_i.second.isDefaultOutput) {
+            //     defaultDevice = dc;
+            // }
+            // dc++;
         }
         
         outputArg.key ="._audio_output";
@@ -261,11 +261,11 @@ void ModemProperties::OnChange(wxPropertyGridEvent &event) {
     }
 }
 
-void ModemProperties::OnCollapse(wxPropertyGridEvent &event) {
+void ModemProperties::OnCollapse(wxPropertyGridEvent & /* event */) {
     collapsed = true;
 }
 
-void ModemProperties::OnExpand(wxPropertyGridEvent &event) {
+void ModemProperties::OnExpand(wxPropertyGridEvent &/* event */) {
     collapsed = false;
 }
 
diff --git a/src/audio/AudioSinkFileThread.cpp b/src/audio/AudioSinkFileThread.cpp
index e49b57b..d8953d9 100644
--- a/src/audio/AudioSinkFileThread.cpp
+++ b/src/audio/AudioSinkFileThread.cpp
@@ -75,7 +75,7 @@ void AudioSinkFileThread::sink(AudioThreadInputPtr input) {
     audioFileHandler->writeToFile(input);
 }
 
-void AudioSinkFileThread::inputChanged(AudioThreadInput oldProps, AudioThreadInputPtr newProps) {
+void AudioSinkFileThread::inputChanged(AudioThreadInput /* oldProps */, AudioThreadInputPtr /* newProps */) {
     // close, set new parameters, adjust file name sequence and re-open?
     if (!audioFileHandler) {
         return;
diff --git a/src/forms/Bookmark/BookmarkView.cpp b/src/forms/Bookmark/BookmarkView.cpp
index 7933c26..8c5dbdb 100644
--- a/src/forms/Bookmark/BookmarkView.cpp
+++ b/src/forms/Bookmark/BookmarkView.cpp
@@ -689,7 +689,7 @@ void BookmarkView::refreshLayout() {
 }
 
 
-wxButton *BookmarkView::makeButton(wxWindow *parent, std::string labelVal, wxObjectEventFunction handler) {
+wxButton *BookmarkView::makeButton(wxWindow * /* parent */, std::string labelVal, wxObjectEventFunction handler) {
     wxButton *nButton = new wxButton( m_buttonPanel, wxID_ANY, labelVal);
     nButton->Connect( wxEVT_COMMAND_BUTTON_CLICKED, handler, nullptr, this);
 
@@ -1553,7 +1553,7 @@ void BookmarkView::onSearchTextFocus( wxMouseEvent&  event ) {
 }
 
 
-void BookmarkView::onSearchText( wxCommandEvent& event ) {
+void BookmarkView::onSearchText( wxCommandEvent& /* event */ ) {
 
     std::wstring searchText = m_searchText->GetValue().Trim().Lower().ToStdWstring();
     
diff --git a/src/forms/Dialog/ActionDialog.cpp b/src/forms/Dialog/ActionDialog.cpp
index b4745e5..0f27ae3 100644
--- a/src/forms/Dialog/ActionDialog.cpp
+++ b/src/forms/Dialog/ActionDialog.cpp
@@ -36,7 +36,7 @@ void ActionDialog::setActiveDialog(ActionDialog *dlg) {
 }
 
 
-void ActionDialog::onClickCancel( wxCommandEvent& event ) {
+void ActionDialog::onClickCancel( wxCommandEvent& /* event */ ) {
     ActionDialog *dlg = activeDialog;
     ActionDialog::setActiveDialog(nullptr);
     dlg->EndModal(0);
@@ -45,7 +45,7 @@ void ActionDialog::onClickCancel( wxCommandEvent& event ) {
 }
 
 
-void ActionDialog::onClickOK( wxCommandEvent& event ) {
+void ActionDialog::onClickOK( wxCommandEvent& /* event */ ) {
     ActionDialog *dlg = activeDialog;
     ActionDialog::setActiveDialog(nullptr);
     dlg->EndModal(0);
diff --git a/src/forms/Dialog/PortSelectorDialog.cpp b/src/forms/Dialog/PortSelectorDialog.cpp
index 74d31ab..73cad81 100644
--- a/src/forms/Dialog/PortSelectorDialog.cpp
+++ b/src/forms/Dialog/PortSelectorDialog.cpp
@@ -21,7 +21,7 @@ PortSelectorDialog::PortSelectorDialog( wxWindow* parent, wxWindowID id, std::st
     m_portSelection->SetValue(defaultPort);
 }
 
-void PortSelectorDialog::onListSelect( wxCommandEvent& event ) {
+void PortSelectorDialog::onListSelect( wxCommandEvent& /* event */ ) {
     int pSelect = m_portList->GetSelection();
     if (pSelect != -1) {
         m_portSelection->SetValue(m_portList->GetString(pSelect));
@@ -29,11 +29,11 @@ void PortSelectorDialog::onListSelect( wxCommandEvent& event ) {
 }
 
 
-void PortSelectorDialog::onCancelButton( wxCommandEvent& event ) {
+void PortSelectorDialog::onCancelButton( wxCommandEvent& /* event */ ) {
     wxGetApp().getAppFrame()->dismissRigControlPortDialog();
 }
 
 
-void PortSelectorDialog::onOKButton( wxCommandEvent& event ) {
+void PortSelectorDialog::onOKButton( wxCommandEvent& /* event */ ) {
     wxGetApp().getAppFrame()->setRigControlPort(m_portSelection->GetValue().ToStdString());
 }
diff --git a/src/forms/DigitalConsole/DigitalConsole.cpp b/src/forms/DigitalConsole/DigitalConsole.cpp
index 8238335..cc73bb5 100644
--- a/src/forms/DigitalConsole/DigitalConsole.cpp
+++ b/src/forms/DigitalConsole/DigitalConsole.cpp
@@ -14,16 +14,16 @@ DigitalConsole::~DigitalConsole() {
     doParent->setDialog(nullptr);
 }
 
-void DigitalConsole::OnClose( wxCloseEvent& event ) {
+void DigitalConsole::OnClose( wxCloseEvent& /* event */ ) {
     doParent->setDialog(nullptr);
 }
 
-void DigitalConsole::OnCopy( wxCommandEvent& event ) {
+void DigitalConsole::OnCopy( wxCommandEvent& /* event */ ) {
     m_dataView->SelectAll();
     m_dataView->Copy();
 }
 
-void DigitalConsole::OnPause( wxCommandEvent& event ) {
+void DigitalConsole::OnPause( wxCommandEvent& /* event */ ) {
     if (streamPaused.load()) {
         m_pauseButton->SetLabel("Stop");
         streamPaused.store(false);
@@ -37,7 +37,7 @@ void DoRefresh( wxTimerEvent& event ) {
     event.Skip();
 }
 
-void DigitalConsole::DoRefresh( wxTimerEvent& event ) {
+void DigitalConsole::DoRefresh( wxTimerEvent& /* event */ ) {
     if (streamWritten.load()) {
         stream_busy.lock();
         m_dataView->AppendText(streamBuf.str());
@@ -47,7 +47,7 @@ void DigitalConsole::DoRefresh( wxTimerEvent& event ) {
     }
 }
 
-void DigitalConsole::OnClear( wxCommandEvent& event ) {
+void DigitalConsole::OnClear( wxCommandEvent& /* event */ ) {
     m_dataView->Clear();
 }
 
diff --git a/src/modules/modem/digital/ModemAPSK.cpp b/src/modules/modem/digital/ModemAPSK.cpp
index 2533e91..997756a 100644
--- a/src/modules/modem/digital/ModemAPSK.cpp
+++ b/src/modules/modem/digital/ModemAPSK.cpp
@@ -97,7 +97,7 @@ void ModemAPSK::updateDemodulatorCons(int cons) {
     }
 }
 
-void ModemAPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemAPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
     
     digitalStart(dkit, demodAPSK, input);
diff --git a/src/modules/modem/digital/ModemASK.cpp b/src/modules/modem/digital/ModemASK.cpp
index 766eec9..d0b494c 100644
--- a/src/modules/modem/digital/ModemASK.cpp
+++ b/src/modules/modem/digital/ModemASK.cpp
@@ -102,7 +102,7 @@ void ModemASK::updateDemodulatorCons(int cons) {
     }
 }
 
-void ModemASK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemASK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
     
     digitalStart(dkit, demodASK, input);
diff --git a/src/modules/modem/digital/ModemBPSK.cpp b/src/modules/modem/digital/ModemBPSK.cpp
index eef810c..cd7cbca 100644
--- a/src/modules/modem/digital/ModemBPSK.cpp
+++ b/src/modules/modem/digital/ModemBPSK.cpp
@@ -19,7 +19,7 @@ std::string ModemBPSK::getName() {
     return "BPSK";
 }
 
-void ModemBPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemBPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
     digitalStart(dkit, demodBPSK, input);
 
diff --git a/src/modules/modem/digital/ModemDPSK.cpp b/src/modules/modem/digital/ModemDPSK.cpp
index f8dbbaa..38f43ed 100644
--- a/src/modules/modem/digital/ModemDPSK.cpp
+++ b/src/modules/modem/digital/ModemDPSK.cpp
@@ -103,7 +103,7 @@ void ModemDPSK::updateDemodulatorCons(int cons) {
     }
 }
 
-void ModemDPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemDPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
    
     digitalStart(dkit, demodDPSK, input);
diff --git a/src/modules/modem/digital/ModemFSK.cpp b/src/modules/modem/digital/ModemFSK.cpp
index d152a8e..37c6816 100644
--- a/src/modules/modem/digital/ModemFSK.cpp
+++ b/src/modules/modem/digital/ModemFSK.cpp
@@ -128,7 +128,7 @@ ModemFSK::~ModemFSK() {
 
 }
 
-void ModemFSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemFSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitFSK *dkit = (ModemKitFSK *)kit;
     
     digitalStart(dkit, nullptr, input);
diff --git a/src/modules/modem/digital/ModemGMSK.cpp b/src/modules/modem/digital/ModemGMSK.cpp
index c1a79fb..b94932d 100644
--- a/src/modules/modem/digital/ModemGMSK.cpp
+++ b/src/modules/modem/digital/ModemGMSK.cpp
@@ -23,7 +23,7 @@ ModemBase *ModemGMSK::factory() {
     return new ModemGMSK;
 }
 
-int ModemGMSK::checkSampleRate(long long sampleRate, int audioSampleRate) {
+int ModemGMSK::checkSampleRate(long long sampleRate, int /* audioSampleRate */) {
     if (sampleRate < MIN_BANDWIDTH) {
         return MIN_BANDWIDTH;
     }
@@ -115,7 +115,7 @@ void ModemGMSK::disposeKit(ModemKit *kit) {
     delete dkit;
 }
 
-void ModemGMSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemGMSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitGMSK *dkit = (ModemKitGMSK *)kit;
     unsigned int sym_out;
     
diff --git a/src/modules/modem/digital/ModemOOK.cpp b/src/modules/modem/digital/ModemOOK.cpp
index fce95a6..2366a42 100644
--- a/src/modules/modem/digital/ModemOOK.cpp
+++ b/src/modules/modem/digital/ModemOOK.cpp
@@ -19,14 +19,14 @@ ModemBase *ModemOOK::factory() {
     return new ModemOOK;
 }
 
-int ModemOOK::checkSampleRate(long long sampleRate, int audioSampleRate) {
+int ModemOOK::checkSampleRate(long long sampleRate, int /* audioSampleRate */) {
     if (sampleRate < 100) {
         return 100;
     }
     return (int)sampleRate;
 }
 
-void ModemOOK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemOOK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
     digitalStart(dkit, demodOOK, input);
    
diff --git a/src/modules/modem/digital/ModemPSK.cpp b/src/modules/modem/digital/ModemPSK.cpp
index 05ac291..c2e99a1 100644
--- a/src/modules/modem/digital/ModemPSK.cpp
+++ b/src/modules/modem/digital/ModemPSK.cpp
@@ -104,7 +104,7 @@ void ModemPSK::updateDemodulatorCons(int cons) {
     }
 }
 
-void ModemPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
 
     digitalStart(dkit, demodPSK, input);
diff --git a/src/modules/modem/digital/ModemQAM.cpp b/src/modules/modem/digital/ModemQAM.cpp
index e2c500d..e516e70 100644
--- a/src/modules/modem/digital/ModemQAM.cpp
+++ b/src/modules/modem/digital/ModemQAM.cpp
@@ -97,7 +97,7 @@ void ModemQAM::updateDemodulatorCons(int cons) {
     }
 }
 
-void ModemQAM::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemQAM::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
     digitalStart(dkit, demodQAM, input);
    
diff --git a/src/modules/modem/digital/ModemQPSK.cpp b/src/modules/modem/digital/ModemQPSK.cpp
index 2b35994..c9e805c 100644
--- a/src/modules/modem/digital/ModemQPSK.cpp
+++ b/src/modules/modem/digital/ModemQPSK.cpp
@@ -19,7 +19,7 @@ std::string ModemQPSK::getName() {
     return "QPSK";
 }
 
-void ModemQPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemQPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
     digitalStart(dkit, demodQPSK, input);
 
diff --git a/src/modules/modem/digital/ModemSQAM.cpp b/src/modules/modem/digital/ModemSQAM.cpp
index 20dc445..a6f255c 100644
--- a/src/modules/modem/digital/ModemSQAM.cpp
+++ b/src/modules/modem/digital/ModemSQAM.cpp
@@ -67,7 +67,7 @@ void ModemSQAM::updateDemodulatorCons(int cons) {
     }
 }
 
-void ModemSQAM::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemSQAM::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
 
     digitalStart(dkit, demodSQAM, input);
diff --git a/src/modules/modem/digital/ModemST.cpp b/src/modules/modem/digital/ModemST.cpp
index 409a1a7..2285e86 100644
--- a/src/modules/modem/digital/ModemST.cpp
+++ b/src/modules/modem/digital/ModemST.cpp
@@ -19,7 +19,7 @@ ModemST::~ModemST() {
     modem_destroy(demodST);
 }
 
-void ModemST::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
+void ModemST::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput * /* audioOut */) {
     ModemKitDigital *dkit = (ModemKitDigital *)kit;
     digitalStart(dkit, demodST, input);
 
diff --git a/src/rig/RigThread.cpp b/src/rig/RigThread.cpp
index 29ba0aa..6d082df 100644
--- a/src/rig/RigThread.cpp
+++ b/src/rig/RigThread.cpp
@@ -32,7 +32,7 @@ RigList &RigThread::enumerate() {
     return RigThread::rigCaps;
 }
 
-int RigThread::add_hamlib_rig(const struct rig_caps *rc, void* f)
+int RigThread::add_hamlib_rig(const struct rig_caps *rc, void* /* f */)
 {
     rigCaps.push_back(rc);
     return 1;
diff --git a/src/visual/ImagePanel.cpp b/src/visual/ImagePanel.cpp
index b67e62e..041220c 100644
--- a/src/visual/ImagePanel.cpp
+++ b/src/visual/ImagePanel.cpp
@@ -10,7 +10,7 @@ ImagePanel::ImagePanel(wxPanel * parent, wxString file, wxBitmapType format) :
 	image.LoadFile(file, format);
 }
 
-void ImagePanel::paintEvent(wxPaintEvent & evt) {
+void ImagePanel::paintEvent(wxPaintEvent & /* evt */) {
     wxPaintDC dc(this);
     render(dc);
 }
diff --git a/src/visual/TuningCanvas.cpp b/src/visual/TuningCanvas.cpp
index b250238..4303524 100644
--- a/src/visual/TuningCanvas.cpp
+++ b/src/visual/TuningCanvas.cpp
@@ -250,7 +250,7 @@ void TuningCanvas::StepTuner(ActiveState state, int exponent, bool up) {
     }
 }
 
-void TuningCanvas::OnIdle(wxIdleEvent &event) {
+void TuningCanvas::OnIdle(wxIdleEvent & /* event */) {
     if (mouseTracker.mouseDown()) {
         if (downState != TUNING_HOVER_NONE) {
             dragAccum += 5.0*mouseTracker.getOriginDeltaMouseX();
diff --git a/src/visual/WaterfallCanvas.cpp b/src/visual/WaterfallCanvas.cpp
index 515d3cf..6f7cfe0 100644
--- a/src/visual/WaterfallCanvas.cpp
+++ b/src/visual/WaterfallCanvas.cpp
@@ -483,7 +483,7 @@ void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
     }
 
 }
-void WaterfallCanvas::OnIdle(wxIdleEvent &event) {
+void WaterfallCanvas::OnIdle(wxIdleEvent & /* event */) {
     processInputQueue();
     Refresh();
 }