diff --git a/Source/PluginEditor.cpp b/Source/PluginEditor.cpp
index 82e6157..c3ee519 100644
--- a/Source/PluginEditor.cpp
+++ b/Source/PluginEditor.cpp
@@ -15,6 +15,7 @@ PeteAudioProcessorEditor::PeteAudioProcessorEditor(PeteAudioProcessor& p)
         PeteLine(PeteLine::Vertical, 2./3.)
     };
     slider.setTextBoxStyle(Slider::NoTextBox, true, 0, 0);
+    slider.addListener(this);
     setSize(600, 600);
     slider.setLookAndFeel(gui);
     addAndMakeVisible(slider);
@@ -26,6 +27,10 @@ PeteAudioProcessorEditor::~PeteAudioProcessorEditor()
 {
 }
 
+void PeteAudioProcessorEditor::sliderValueChanged(Slider* s) {
+    processor.freq = slider.getValue();
+}
+
 void PeteAudioProcessorEditor::paint(Graphics& g)
 {
     g.fillAll(Colours::white);
diff --git a/Source/PluginEditor.h b/Source/PluginEditor.h
index b31c0d8..169d39c 100644
--- a/Source/PluginEditor.h
+++ b/Source/PluginEditor.h
@@ -7,7 +7,7 @@
 #include "LookAndFeel.h"
 #include "PeteLine.h"
 
-class PeteAudioProcessorEditor  : public AudioProcessorEditor
+class PeteAudioProcessorEditor  : public AudioProcessorEditor, SliderListener
 {
 public:
     PeteAudioProcessorEditor (PeteAudioProcessor&);
@@ -15,6 +15,8 @@ public:
 
     void paint (Graphics&) override;
     void resized() override;
+    
+    void sliderValueChanged(Slider* s) override;
 
 private:
     PeteAudioProcessor& processor;
diff --git a/Source/PluginProcessor.h b/Source/PluginProcessor.h
index 45e5ab3..46db2a3 100644
--- a/Source/PluginProcessor.h
+++ b/Source/PluginProcessor.h
@@ -39,6 +39,8 @@ public:
 
     void getStateInformation (MemoryBlock& destData) override;
     void setStateInformation (const void* data, int sizeInBytes) override;
+    
+    float freq;
 
 private:
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (PeteAudioProcessor)
diff --git a/test Project/Samples/Recorded/0002 3-Audio-1.wav.reapeaks b/test Project/Samples/Recorded/0002 3-Audio-1.wav.reapeaks
index 2a4f397..5f04805 100644
Binary files a/test Project/Samples/Recorded/0002 3-Audio-1.wav.reapeaks and b/test Project/Samples/Recorded/0002 3-Audio-1.wav.reapeaks differ
diff --git a/wrDsp b/wrDsp
index a8bb31b..c828003 160000
--- a/wrDsp
+++ b/wrDsp
@@ -1 +1 @@
-Subproject commit a8bb31b28ac8062e5abcedb3dccf9911007b603d
+Subproject commit c828003a95997245e504260871e788d5fe6b4c5a
diff --git a/wrLib b/wrLib
index 76147e5..a4e5fa1 160000
--- a/wrLib
+++ b/wrLib
@@ -1 +1 @@
-Subproject commit 76147e53b1a8d2280ac59f3d6927d1c4b550920c
+Subproject commit a4e5fa1c58bb2ced235ebd7d3493a19c3113b12a