diff --git a/src/visual/SpectrumCanvas.cpp b/src/visual/SpectrumCanvas.cpp
index 65a52b2..e618cc5 100644
--- a/src/visual/SpectrumCanvas.cpp
+++ b/src/visual/SpectrumCanvas.cpp
@@ -27,7 +27,7 @@ EVT_MOUSEWHEEL(SpectrumCanvas::OnMouseWheelMoved)
 wxEND_EVENT_TABLE()
 
 SpectrumCanvas::SpectrumCanvas(wxWindow *parent, int *attribList) :
-        InteractiveCanvas(parent, attribList), fft_size(0), waterfallCanvas(NULL), trackingRate(0) {
+        InteractiveCanvas(parent, attribList), waterfallCanvas(NULL) {
 
     glContext = new SpectrumContext(this, &wxGetApp().GetContext(this));
 
diff --git a/src/visual/SpectrumCanvas.h b/src/visual/SpectrumCanvas.h
index 636296d..eb05e79 100644
--- a/src/visual/SpectrumCanvas.h
+++ b/src/visual/SpectrumCanvas.h
@@ -20,7 +20,6 @@ public:
     std::vector<float> spectrum_points;
 
     SpectrumCanvas(wxWindow *parent, int *attribList = NULL);
-//    void setup(int fft_size_in);
     ~SpectrumCanvas();
 
     void attachWaterfallCanvas(WaterfallCanvas *canvas_in);
@@ -40,20 +39,8 @@ private:
     void OnMouseReleased(wxMouseEvent& event);
     void OnMouseLeftWindow(wxMouseEvent& event);
 
-//    fftwf_complex *in, *out;
-//    fftwf_plan plan;
-//
-//    float fft_ceil_ma, fft_ceil_maa;
-//    float fft_floor_ma, fft_floor_maa;
-//
-//    std::vector<float> fft_result;
-//    std::vector<float> fft_result_ma;
-//    std::vector<float> fft_result_maa;
-
     SpectrumContext *glContext;
     WaterfallCanvas *waterfallCanvas;
-    int fft_size;
-    int trackingRate;
     
     SpectrumVisualDataQueue visualDataQueue;
 
diff --git a/src/visual/WaterfallCanvas.cpp b/src/visual/WaterfallCanvas.cpp
index c928d89..4efa1e6 100644
--- a/src/visual/WaterfallCanvas.cpp
+++ b/src/visual/WaterfallCanvas.cpp
@@ -717,16 +717,6 @@ void WaterfallCanvas::OnMouseRightReleased(wxMouseEvent& event) {
     mouseZoom = 1.0;
 }
 
-
-//
-//bool WaterfallCanvas::isPolling() {
-//    return polling;
-//}
-//
-//void WaterfallCanvas::setPolling(bool polling) {
-//    this->polling = polling;
-//}
-
 SpectrumVisualDataQueue *WaterfallCanvas::getVisualDataQueue() {
     return &visualDataQueue;
 }
\ No newline at end of file