diff --git a/Appli/Core/Inc/audio_effects.h b/Appli/Core/Inc/audio_effects.h
index 5b01c57..d5264be 100644
--- a/Appli/Core/Inc/audio_effects.h
+++ b/Appli/Core/Inc/audio_effects.h
@@ -1,6 +1,7 @@
 #ifndef AUDIO_EFFECTS_H
 #define AUDIO_EFFECTS_H
 
+#include <stdbool.h>
 #include "fx_equalizer.h"
 #include "fx_overdrive.h"
 #include "fx_saturation.h"
@@ -16,6 +17,7 @@ extern "C" {
  * egaliseur -> overdrive -> saturation -> echo -> reverberation. */
 typedef struct
 {
+    bool audio_on_off;
     FxEqualizerParams equalizer;
     FxOverdriveParams overdrive;
     FxSaturationParams saturation;
diff --git a/Appli/Core/Src/audio_effects.c b/Appli/Core/Src/audio_effects.c
index b876e9e..4df9a24 100644
--- a/Appli/Core/Src/audio_effects.c
+++ b/Appli/Core/Src/audio_effects.c
@@ -10,6 +10,7 @@ static FxReverbState     g_reverbState;
 
 void AudioEffects_Init(void)
 {
+    g_params.audio_on_off = false;
     FxEqualizer_Init(&g_eqState, &g_params.equalizer);
     FxOverdrive_Init(&g_overdriveState, &g_params.overdrive);
     FxSaturation_Init(&g_saturationState, &g_params.saturation);
@@ -25,6 +26,14 @@ float AudioEffects_Process(float input)
     sample = FxSaturation_Process(&g_saturationState, &g_params.saturation, sample);
     sample = FxEcho_Process(&g_echoState, &g_params.echo, sample);
     sample = FxReverb_Process(&g_reverbState, &g_params.reverb, sample);
+
+    /* Coupure de sortie : les effets continuent de tourner (pas de discontinuite
+     * d'etat au reactivation), seule la sortie audible est reduite au silence. */
+    if (!g_params.audio_on_off)
+    {
+        return 0.0f;
+    }
+
     return sample;
 }
 
diff --git a/Appli/TouchGFX/gui/include/gui/overview_screen/OverviewView.hpp b/Appli/TouchGFX/gui/include/gui/overview_screen/OverviewView.hpp
index 73a5ad2..ce74378 100644
--- a/Appli/TouchGFX/gui/include/gui/overview_screen/OverviewView.hpp
+++ b/Appli/TouchGFX/gui/include/gui/overview_screen/OverviewView.hpp
@@ -11,6 +11,8 @@ public:
     virtual ~OverviewView() {}
     virtual void setupScreen();
     virtual void tearDownScreen();
+
+    virtual void toggleAudioOnOFF();
 protected:
 };
 
diff --git a/Appli/TouchGFX/gui/src/overview_screen/OverviewView.cpp b/Appli/TouchGFX/gui/src/overview_screen/OverviewView.cpp
index 9a16638..3e6d5da 100644
--- a/Appli/TouchGFX/gui/src/overview_screen/OverviewView.cpp
+++ b/Appli/TouchGFX/gui/src/overview_screen/OverviewView.cpp
@@ -1,16 +1,23 @@
-#include <gui/overview_screen/OverviewView.hpp>
-
-OverviewView::OverviewView()
-{
-
-}
-
-void OverviewView::setupScreen()
-{
-    OverviewViewBase::setupScreen();
-}
-
-void OverviewView::tearDownScreen()
-{
-    OverviewViewBase::tearDownScreen();
-}
+#include <gui/overview_screen/OverviewView.hpp>
+#include <audio_effects.h>
+
+OverviewView::OverviewView()
+{
+
+}
+
+void OverviewView::setupScreen()
+{
+    OverviewViewBase::setupScreen();
+    toggleButton1.forceState(AudioEffects_GetParams()->audio_on_off);
+}
+
+void OverviewView::tearDownScreen()
+{
+    OverviewViewBase::tearDownScreen();
+}
+
+void OverviewView::toggleAudioOnOFF()
+{
+    AudioEffects_GetParams()->audio_on_off = toggleButton1.getState();
+}