diff --git a/UnityProject/Assembly-CSharp-Editor.csproj b/UnityProject/Assembly-CSharp-Editor.csproj
index 9cf6e07..eec7d5f 100644
--- a/UnityProject/Assembly-CSharp-Editor.csproj
+++ b/UnityProject/Assembly-CSharp-Editor.csproj
@@ -65,7 +65,8 @@
     <Compile Include="Assets\Editor\SpectrumGeneratorEditMode.cs" />
     <Compile Include="Assets\Editor\UnitTest\UnitTest_ChangeObserver.cs" />
     <Compile Include="Assets\Editor\UnitTest\UnitTest_RectangularSelection.cs" />
-    <Compile Include="Assets\Editor\UnitTest\UnitTest_SpectrumGenerator.cs" />
+    <Compile Include="Assets\Editor\UnitTest\UnitTest_SpectrumGeneratorEditMode.cs" />
+    <Compile Include="Assets\Editor\UnitTest\UnitTest_SpectrumGeneratorPlayMode.cs" />
     <Compile Include="Assets\Scripts\VideoInput\Editor\UnitTest\ComponentFactoryTestCase.cs" />
     <Compile Include="Assets\Scripts\VideoInput\Editor\UnitTest\KinectSensorTestCase.cs" />
     <Compile Include="Assets\ThridParty\Editor\KinectCopyPluginDataHelper.cs" />
diff --git a/UnityProject/Assets/Editor/PdSpectrumBindEditor.cs b/UnityProject/Assets/Editor/PdSpectrumBindEditor.cs
index 0aac61a..84142bb 100644
--- a/UnityProject/Assets/Editor/PdSpectrumBindEditor.cs
+++ b/UnityProject/Assets/Editor/PdSpectrumBindEditor.cs
@@ -45,7 +45,6 @@ namespace cylvester
             GUILayout.Label("Spectrum Extractor", EditorStyles.boldLabel);
             paintSpace_ = GUILayoutUtility.GetRect(behaviour.TextureWidth, behaviour.TextureWidth,
                 behaviour.TextureHeight, behaviour.TextureHeight);
-
             
             UpdateSelection();
 
diff --git a/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGenerator.cs b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGenerator.cs
deleted file mode 100644
index e82cb96..0000000
--- a/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGenerator.cs
+++ /dev/null
@@ -1,113 +0,0 @@
-using NUnit.Framework;
-using NSubstitute;
-using UnityEngine;
-
-namespace cylvester
-{
-    [TestFixture]
-    public class UnitTest_SpectrumGenerator
-    {
-        private IPdArray pdArray_;
-        private Rect selectionRect_;
-        private Rect noSelectionRect_;
-        private float[] dummyData_;
-        private Color standardColor_;
-        private Color selectedColor_;
-
-        [SetUp]
-        public void SetUp()
-        {
-            dummyData_ = new float[100];
-            pdArray_ = Substitute.For<IPdArray>();
-            pdArray_.Data.Returns(dummyData_);
-            selectionRect_ = new Rect {x = 9, y = 9, width = 3, height = 3};
-            noSelectionRect_ = new Rect {width = 0, height = 0};
-
-            standardColor_ = new Color(0f, 0f, 0f, 0.2f);
-            selectedColor_ = new Color(0f, 0f, 0f, 1f);
-        }
-/*
-        [Test]
-        public void Construction()
-        {
-            var spectrumGenerator = new SpectrumGenerator(100, 101);
-
-            Assert.AreEqual(100, spectrumGenerator.Spectrum.width);
-            Assert.AreEqual(101, spectrumGenerator.Spectrum.height);
-        }
-
-        [Test]
-        public void Update_array_available_loud()
-        {
-            for (var i = 0; i < dummyData_.Length; ++i)
-                dummyData_[i] = 100f; // loud sound
-
-            var spectrumGenerator = new SpectrumGenerator(100, 100);
-            var validPixel = spectrumGenerator.Update(pdArray_, selectionRect_);
-
-            Assert.AreEqual(1, validPixel);
-        }
-
-        [Test]
-        public void Update_array_available_soft()
-        {
-            for (var i = 0; i < dummyData_.Length; ++i)
-                dummyData_[i] = 0.001f; // soft sound
-
-            var spectrumGenerator = new SpectrumGenerator(100, 100);
-            var validPixel = spectrumGenerator.Update(pdArray_, selectionRect_);
-
-            Assert.AreEqual(0, validPixel);
-        }
-
-        [Test]
-        public void Update_array_available_loud_no_selection()
-        {
-            for (var i = 0; i < dummyData_.Length; ++i)
-                dummyData_[i] = 100f; // loud sound
-
-            var spectrumGenerator = new SpectrumGenerator(100, 100);
-            var validPixel = spectrumGenerator.Update(pdArray_, noSelectionRect_);
-
-            Assert.AreEqual(0, validPixel);
-        }
-
-
-        [Test]
-        public void Update_array_unavailable()
-        {
-            var spectrumGenerator = new SpectrumGenerator(100, 100);
-            var validPixels = spectrumGenerator.Update(null, noSelectionRect_);
-
-            Assert.AreEqual(0, validPixels);
-            var texture = spectrumGenerator.Spectrum;
-            var pixels = texture.GetPixels();
-
-            foreach (var pixel in pixels)
-                Assert.AreEqual(standardColor_, pixel);
-        }
-
-        [Test]
-        public void Update_array_unavailable_with_selection()
-        {
-            var spectrumGenerator = new SpectrumGenerator(100, 100);
-            var validPixels = spectrumGenerator.Update(null, selectionRect_);
-
-            Assert.AreEqual(0, validPixels);
-            var texture = spectrumGenerator.Spectrum;
-
-            for (var x = 0; x < 100; x++)
-            {
-                for (var y = 0; y < 100; y++)
-                {
-                    if (x == 10 && y == 90) // because vertically inverted
-                        Assert.AreEqual(selectedColor_, texture.GetPixel(x, y));
-                    else
-                        Assert.AreEqual(standardColor_, texture.GetPixel(x, y));
-                }
-            }
-        }
-            */
-
-    }
-}
\ No newline at end of file
diff --git a/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorEditMode.cs b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorEditMode.cs
new file mode 100644
index 0000000..dc09260
--- /dev/null
+++ b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorEditMode.cs
@@ -0,0 +1,74 @@
+using NUnit.Framework;
+using NSubstitute;
+using UnityEngine;
+
+namespace cylvester
+{
+    [TestFixture]
+    public class UnitTest_SpectrumGeneratorEditMode
+    {
+        private IPdArray pdArray_;
+        private Rect selectionRect_;
+        private Rect noSelectionRect_;
+        private float[] dummyData_;
+        private Color standardColor_;
+        private Color selectedColor_;
+
+        [SetUp]
+        public void SetUp()
+        {
+            dummyData_ = new float[100];
+            pdArray_ = Substitute.For<IPdArray>();
+            pdArray_.Data.Returns(dummyData_);
+            selectionRect_ = new Rect {x = 9, y = 9, width = 3, height = 3};
+            noSelectionRect_ = new Rect {width = 0, height = 0};
+
+            standardColor_ = new Color(0f, 0f, 0f, 0.2f);
+            selectedColor_ = new Color(0f, 0f, 0f, 1f);
+        }
+
+        [Test]
+        public void Construction()
+        {
+            var spectrumGenerator = new SpectrumGeneratorEditMode(100, 101);
+
+            Assert.AreEqual(100, spectrumGenerator.Spectrum.width);
+            Assert.AreEqual(101, spectrumGenerator.Spectrum.height);
+        }
+
+        [Test]
+        public void Update_without_selection()
+        {
+            var spectrumGeneratorEditMode = new SpectrumGeneratorEditMode(100, 100);
+            var validPixels = spectrumGeneratorEditMode.Update(noSelectionRect_);
+
+            Assert.AreEqual(0, validPixels);
+            var texture = spectrumGeneratorEditMode.Spectrum;
+            var pixels = texture.GetPixels();
+
+            foreach (var pixel in pixels)
+                Assert.AreEqual(standardColor_, pixel);
+        }
+
+        [Test]
+        public void Update_with_selection()
+        {
+            var spectrumGeneratorEditMode = new SpectrumGeneratorEditMode(100, 100);
+            var validPixels = spectrumGeneratorEditMode.Update(selectionRect_);
+
+            Assert.AreEqual(0, validPixels);
+            var texture = spectrumGeneratorEditMode.Spectrum;
+
+            for (var x = 0; x < 100; x++)
+            {
+                for (var y = 0; y < 100; y++)
+                {
+                    if (x == 10 && y == 90) // because vertically inverted
+                        Assert.AreEqual(selectedColor_, texture.GetPixel(x, y));
+                    else
+                        Assert.AreEqual(standardColor_, texture.GetPixel(x, y));
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGenerator.cs.meta b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorEditMode.cs.meta
similarity index 100%
rename from UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGenerator.cs.meta
rename to UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorEditMode.cs.meta
diff --git a/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorPlayMode.cs b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorPlayMode.cs
new file mode 100644
index 0000000..0da3dd8
--- /dev/null
+++ b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorPlayMode.cs
@@ -0,0 +1,71 @@
+using NUnit.Framework;
+using NSubstitute;
+using UnityEngine;
+
+namespace cylvester
+{
+    [TestFixture]
+    public class UnitTest_SpectrumGeneratorPlayMode
+    {
+        private IPdArray pdArray_;
+        private Rect selectionRect_;
+        private Rect noSelectionRect_;
+        private float[] dummyData_;
+
+
+        [SetUp]
+        public void SetUp()
+        {
+            dummyData_ = new float[100];
+            pdArray_ = Substitute.For<IPdArray>();
+            pdArray_.Data.Returns(dummyData_);
+            selectionRect_ = new Rect {x = 9, y = 9, width = 3, height = 3};
+            noSelectionRect_ = new Rect {width = 0, height = 0};
+        }
+
+        [Test]
+        public void Construction()
+        {
+            var spectrumGenerator = new SpectrumGeneratorPlayMode(100, 101, pdArray_);
+
+            Assert.AreEqual(100, spectrumGenerator.Spectrum.width);
+            Assert.AreEqual(101, spectrumGenerator.Spectrum.height);
+        }
+
+        [Test]
+        public void Update_array_available_loud()
+        {
+            for (var i = 0; i < dummyData_.Length; ++i)
+                dummyData_[i] = 100f; // loud sound
+
+            var spectrumGenerator = new SpectrumGeneratorPlayMode(100, 100, pdArray_);
+            var validPixel = spectrumGenerator.Update(selectionRect_);
+
+            Assert.AreEqual(1, validPixel);
+        }
+
+        [Test]
+        public void Update_array_available_soft()
+        {
+            for (var i = 0; i < dummyData_.Length; ++i)
+                dummyData_[i] = 0.001f; // soft sound
+
+            var spectrumGenerator = new SpectrumGeneratorPlayMode(100, 100, pdArray_);
+            var validPixel = spectrumGenerator.Update(selectionRect_);
+
+            Assert.AreEqual(0, validPixel);
+        }
+
+        [Test]
+        public void Update_array_available_loud_no_selection()
+        {
+            for (var i = 0; i < dummyData_.Length; ++i)
+                dummyData_[i] = 100f; // loud sound
+
+            var spectrumGenerator = new SpectrumGeneratorPlayMode(100, 100, pdArray_);
+            var validPixel = spectrumGenerator.Update(noSelectionRect_);
+
+            Assert.AreEqual(0, validPixel);
+        }
+    }
+}
\ No newline at end of file
diff --git a/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorPlayMode.cs.meta b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorPlayMode.cs.meta
new file mode 100644
index 0000000..68f9ff3
--- /dev/null
+++ b/UnityProject/Assets/Editor/UnitTest/UnitTest_SpectrumGeneratorPlayMode.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 130ee59590104ff991a08209e3bcd345
+timeCreated: 1570033095
\ No newline at end of file