diff --git a/PiP-Tool/DataModel/AudioControls.cs b/PiP-Tool/DataModel/AudioControls.cs
index e92e59c..2d36403 100644
--- a/PiP-Tool/DataModel/AudioControls.cs
+++ b/PiP-Tool/DataModel/AudioControls.cs
@@ -97,18 +97,18 @@ internal void GetControls(DataFlow dataFlow)
 
             if (audioControls0.Count == 0)
             {
-                Logger.Instance.Info("Found no audio control");
+                Logger.Instance.Debug("Found no audio control");
                 DisposeControls();
                 return;
             }
 
             /*
             if (audioControls0.Count == 0) {
-                Logger.Instance.Info("Getting controls by root");
+                Logger.Instance.Debug("Getting controls by root");
                 audioControls0 = GetControls(dataFlow, x => (
                     new ProcessInfo(x.ProcessID).GetRootProcess().ProcessId == this.selectedWindow.GetRootProcess().ProcessId
                 ));
-                Logger.Instance.Info("Getting controls by root done");
+                Logger.Instance.Debug("Getting controls by root done");
             }
             */
 
@@ -125,12 +125,12 @@ internal void GetControls(DataFlow dataFlow)
             /*
             if (audioControls2.Count == 0)
             {
-                Logger.Instance.Info("Filtering controls by root");
+                Logger.Instance.Debug("Filtering controls by root");
                 audioControls2 = audioControls0.Where(x => (
                     x.Process.Program == this.selectedWindow.Program
                     && x.Process.GetRootProcess().ProcessId == this.selectedWindow.GetRootProcess().ProcessId
                 )).ToList();
-                Logger.Instance.Info("Filtering controls by root done");
+                Logger.Instance.Debug("Filtering controls by root done");
             }
             */
             if (audioControls2.Count == 0) { 
@@ -141,27 +141,27 @@ internal void GetControls(DataFlow dataFlow)
             /*
             if (audioControls2.Count == 0)
             {
-                Logger.Instance.Info("Filtering controls by root2");
+                Logger.Instance.Debug("Filtering controls by root2");
                 audioControls2 = audioControls0.Where(x => (
                     x.Process.GetRootProcess().ProcessId == this.selectedWindow.GetRootProcess().ProcessId
                 )).ToList();
-                Logger.Instance.Info("Filtering controls by root2 done");
+                Logger.Instance.Debug("Filtering controls by root2 done");
             }
             */
 
             if (audioControls2.Count == 0)
             {
-                Logger.Instance.Info("Found no audio control");
+                Logger.Instance.Debug("Found no audio control");
                 DisposeControls();
                 return;
             }
             DisposeControls();
             this.audioControls = audioControls2.ToArray();
-            Logger.Instance.Info("Found " + audioControls.Length + " audio controls");
+            Logger.Instance.Debug("Found " + audioControls.Length + " audio controls");
             foreach(AudioControl control in this.audioControls)
             {
                 control.RegisterAudioSessionNotification(sessionEvents);
-                Logger.Instance.Info("AudioController " + control.Process.Program + " " + control.Process.Title);
+                Logger.Instance.Debug("AudioController " + control.Process.Program + " " + control.Process.Title);
             }
         }
         internal void SetAllMasterVolume(float volume)
@@ -170,7 +170,7 @@ internal void SetAllMasterVolume(float volume)
             {
                 if (control.MasterVolume != volume) {
                     control.MasterVolume = volume;
-                    Logger.Instance.Info("Notified mixer changed to " + control.MasterVolume);
+                    Logger.Instance.Debug("Notified mixer changed to " + control.MasterVolume);
                 }
             }
         }
diff --git a/PiP-Tool/DataModel/ProcessInfo.cs b/PiP-Tool/DataModel/ProcessInfo.cs
index e5fe142..473dc18 100644
--- a/PiP-Tool/DataModel/ProcessInfo.cs
+++ b/PiP-Tool/DataModel/ProcessInfo.cs
@@ -154,7 +154,7 @@ internal int GetParentProcessId()
                 
             }
             this.parentProcessId = parentProcessId;
-            Logger.Instance.Info("Child-Parent: " + this.ProcessId + " " + this.ParentProcessId);
+            Logger.Instance.Debug("Child-Parent: " + this.ProcessId + " " + this.ParentProcessId);
             return ParentProcessId;
         }
         internal int GetParentProcessId1()
diff --git a/PiP-Tool/ViewModels/VolumeViewModel.cs b/PiP-Tool/ViewModels/VolumeViewModel.cs
index 517bca4..9d23f43 100644
--- a/PiP-Tool/ViewModels/VolumeViewModel.cs
+++ b/PiP-Tool/ViewModels/VolumeViewModel.cs
@@ -41,7 +41,7 @@ public double Volume
         /// </summary>
         public VolumeViewModel()
         {
-            Logger.Instance.Info("   ====== VolumeDialog ======   ");
+            Logger.Instance.Debug("   ====== VolumeDialog ======   ");
 
             MessengerInstance.Register<AudioControls>(this, InitAudioControls);
             LoadedCommand = new RelayCommand(LoadedCommandExecute);
@@ -81,7 +81,7 @@ private void InitAudioControls(AudioControls audioControls)
             this.audioControls = audioControls;
             MessengerInstance.Unregister<AudioControls>(this);
 
-            Logger.Instance.Info("Init Volume : " + audioControls.SelectedWindow.Title);
+            Logger.Instance.Debug("Init Volume : " + audioControls.SelectedWindow.Title);
             this.audioControls.SessionEvents.SimpleVolumeChanged += OnMixerChanged;
             this.Volume = this.audioControls.MasterVolume;
             //this.SetSliderValue(this.audioControls.MasterVolume);
@@ -108,7 +108,7 @@ private void CloseCommandExecute()
 
         private void SetMixerVolume(float volume)
         {
-            Logger.Instance.Info("Setting master volume to " + volume);
+            Logger.Instance.Debug("Setting master volume to " + volume);
             this.audioControls.SetAllMasterVolume(volume);
         }
 
@@ -133,14 +133,14 @@ private void SetSliderValue(double value)
 
         private void OnMixerChanged(object sender, AudioSessionSimpleVolumeChangedEventArgs e)
         {
-            Logger.Instance.Info("Notified mixer changed to " + e.NewVolume);
+            Logger.Instance.Debug("Notified mixer changed to " + e.NewVolume);
             SetSliderValue(e.NewVolume);
         }
 
         public void OnSliderChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
         {
             var value = e.NewValue;
-            Logger.Instance.Info("Slider changed to " + value);
+            Logger.Instance.Debug("Slider changed to " + value);
             if (volume != value)
                 volume = value;
             SetMixerVolume(value);