diff --git a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Contents.json b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Contents.json
index 74722f2..3a4dc55 100644
--- a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Contents.json	
+++ b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Contents.json	
@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "Linear-Spectrogram.png",
+      "filename" : "Linear Spectrogram.png",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "Linear-Spectrogram@2x.png",
+      "filename" : "Linear Spectrogram@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "Linear-Spectrogram@3x.png",
+      "filename" : "Linear Spectrogram@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }
diff --git a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram.png b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram.png
new file mode 100644
index 0000000..c03c51f
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram@2x.png b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram@2x.png
new file mode 100644
index 0000000..80d92b3
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram@2x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram@3x.png b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram@3x.png
new file mode 100644
index 0000000..4e6d0a8
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear Spectrogram@3x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram.png b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram.png
deleted file mode 100644
index 911a577..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram@2x.png b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram@2x.png
deleted file mode 100644
index 0a41ddc..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram@2x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram@3x.png b/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram@3x.png
deleted file mode 100644
index 17c0c1c..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Linear Spectrogram.imageset/Linear-Spectrogram@3x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Contents.json b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Contents.json
index 7ca63e6..83a6a6f 100644
--- a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Contents.json	
+++ b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Contents.json	
@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "Mel-Spectrogram.png",
+      "filename" : "Mel Spectrogram.png",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "Mel-Spectrogram@2x.png",
+      "filename" : "Mel Spectrogram@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "Mel-Spectrogram@3x.png",
+      "filename" : "Mel Spectrogram@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }
diff --git a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram.png b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram.png
new file mode 100644
index 0000000..1936f7d
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram@2x.png b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram@2x.png
new file mode 100644
index 0000000..97790f5
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram@2x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram@3x.png b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram@3x.png
new file mode 100644
index 0000000..b1247c3
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel Spectrogram@3x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram.png b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram.png
deleted file mode 100644
index b3e3e2a..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram@2x.png b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram@2x.png
deleted file mode 100644
index d34b8dd..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram@2x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram@3x.png b/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram@3x.png
deleted file mode 100644
index 8011dca..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mel Spectrogram.imageset/Mel-Spectrogram@3x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Contents.json b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Contents.json
index 96442b8..a131a14 100644
--- a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Contents.json	
+++ b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Contents.json	
@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "Drum.png",
+      "filename" : "Mini Drums.png",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "Drum@2x.png",
+      "filename" : "Mini Drums@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "Drum@3x.png",
+      "filename" : "Mini Drums@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }
diff --git a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum.png b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum.png
deleted file mode 100644
index 325280c..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum@2x.png b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum@2x.png
deleted file mode 100644
index 59cc706..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum@2x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum@3x.png b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum@3x.png
deleted file mode 100644
index 02a71d0..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Drum@3x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums.png b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums.png
new file mode 100644
index 0000000..053fd1f
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums@2x.png b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums@2x.png
new file mode 100644
index 0000000..061bc61
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums@2x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums@3x.png b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums@3x.png
new file mode 100644
index 0000000..24917e5
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mini Drums.imageset/Mini Drums@3x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Contents.json b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Contents.json
index 9da3cfe..280b62c 100644
--- a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Contents.json	
+++ b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Contents.json	
@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "MiniKeys1.png",
+      "filename" : "Mini Keyboard.png",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "MiniKeys1@2x.png",
+      "filename" : "Mini Keyboard@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "MiniKeys1@3x.png",
+      "filename" : "Mini Keyboard@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }
diff --git a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard.png b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard.png
new file mode 100644
index 0000000..af6896f
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard@2x.png b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard@2x.png
new file mode 100644
index 0000000..211afe7
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard@2x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard@3x.png b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard@3x.png
new file mode 100644
index 0000000..e28fe8a
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/Mini Keyboard@3x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1.png b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1.png
deleted file mode 100644
index 62ace36..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1@2x.png b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1@2x.png
deleted file mode 100644
index 034bd47..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1@2x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1@3x.png b/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1@3x.png
deleted file mode 100644
index 66f5538..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Mini Keyboard.imageset/MiniKeys1@3x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Contents.json b/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Contents.json
deleted file mode 100644
index 95fcc69..0000000
--- a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Contents.json	
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  "images" : [
-    {
-      "filename" : "Pitch.png",
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "filename" : "Pitch@2x.png",
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "filename" : "Pitch@3x.png",
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}
diff --git a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch.png b/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch.png
deleted file mode 100644
index 63b0de2..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch@2x.png b/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch@2x.png
deleted file mode 100644
index acf8af9..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch@2x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch@3x.png b/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch@3x.png
deleted file mode 100644
index 423c651..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Pitch Finder.imageset/Pitch@3x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Contents.json b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Contents.json
index 7714be9..16dc18e 100644
--- a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Contents.json
+++ b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Contents.json
@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "Vocal.png",
+      "filename" : "Vocals.png",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "Vocal@2x.png",
+      "filename" : "Vocals@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "Vocal@3x.png",
+      "filename" : "Vocals@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }
diff --git a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal.png b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal.png
deleted file mode 100644
index 87bffc0..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal@2x.png b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal@2x.png
deleted file mode 100644
index 3393cf2..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal@2x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal@3x.png b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal@3x.png
deleted file mode 100644
index 7d67fe0..0000000
Binary files a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocal@3x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals.png b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals.png
new file mode 100644
index 0000000..59a24c6
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals@2x.png b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals@2x.png
new file mode 100644
index 0000000..84aa021
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals@2x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals@3x.png b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals@3x.png
new file mode 100644
index 0000000..7ccbd20
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/Vocals.imageset/Vocals@3x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Contents.json b/Miano/Assets.xcassets/Instruments/White Noise.imageset/Contents.json
index 19daa99..cda2838 100644
--- a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Contents.json	
+++ b/Miano/Assets.xcassets/Instruments/White Noise.imageset/Contents.json	
@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "Noise.png",
+      "filename" : "White Noise.png",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "Noise@2x.png",
+      "filename" : "White Noise@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "Noise@3x.png",
+      "filename" : "White Noise@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }
diff --git a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise.png b/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise.png
deleted file mode 100644
index e534a6a..0000000
Binary files a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise@2x.png b/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise@2x.png
deleted file mode 100644
index c4554a5..0000000
Binary files a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise@2x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise@3x.png b/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise@3x.png
deleted file mode 100644
index c9ca497..0000000
Binary files a/Miano/Assets.xcassets/Instruments/White Noise.imageset/Noise@3x.png and /dev/null differ
diff --git a/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise.png b/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise.png
new file mode 100644
index 0000000..3bd8163
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise.png differ
diff --git a/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise@2x.png b/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise@2x.png
new file mode 100644
index 0000000..45a980c
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise@2x.png differ
diff --git a/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise@3x.png b/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise@3x.png
new file mode 100644
index 0000000..f30bce4
Binary files /dev/null and b/Miano/Assets.xcassets/Instruments/White Noise.imageset/White Noise@3x.png differ
diff --git a/Miano/Instruments/MiniSpectrogram/MiniSpectrogram.swift b/Miano/Instruments/MiniSpectrogram/MiniSpectrogram.swift
index 38878f6..237a8cd 100644
--- a/Miano/Instruments/MiniSpectrogram/MiniSpectrogram.swift
+++ b/Miano/Instruments/MiniSpectrogram/MiniSpectrogram.swift
@@ -19,7 +19,9 @@ struct MiniSpectrogram: View {
     var body: some View {
         SpectrogramView(audioSpectrogram: audioSpectrogram, .mel)
             .environmentObject(audioSpectrogram)
-
+            .onAppear(perform: {
+                audioSpectrogram.startRunning()
+            })
             .onChange(of: scenePhase) { phase in
                 if phase == .active {
                     Task(priority: .userInitiated) {
@@ -27,6 +29,10 @@ struct MiniSpectrogram: View {
                     }
                 }
             }
+
+            .onReceive(NotificationCenter.default.publisher(for: NSWindow.willCloseNotification)) { _ in
+                audioSpectrogram.stopRunning()
+            }
     }
 }
 
diff --git a/Miano/Instruments/MiniSpectrogram/SpectrogramKit/AudioSpectrogram+AVCaptureAudioDataOutputSampleBufferDelegate.swift b/Miano/Instruments/MiniSpectrogram/SpectrogramKit/AudioSpectrogram+AVCaptureAudioDataOutputSampleBufferDelegate.swift
index 494e6a6..6321248 100644
--- a/Miano/Instruments/MiniSpectrogram/SpectrogramKit/AudioSpectrogram+AVCaptureAudioDataOutputSampleBufferDelegate.swift
+++ b/Miano/Instruments/MiniSpectrogram/SpectrogramKit/AudioSpectrogram+AVCaptureAudioDataOutputSampleBufferDelegate.swift
@@ -149,4 +149,13 @@ extension AudioSpectrogram: AVCaptureAudioDataOutputSampleBufferDelegate {
             }
         }
     }
+    
+    func stopRunning() {
+        print("Stop running")
+        sessionQueue.async {
+            if AVCaptureDevice.authorizationStatus(for: .audio) == .authorized {
+                self.captureSession.stopRunning()
+            }
+        }
+    }
 }