diff --git a/YAMP-alpha/GraphVisualization.cs b/YAMP-alpha/GraphVisualization.cs
index 9d54407..3f8c8b6 100644
--- a/YAMP-alpha/GraphVisualization.cs
+++ b/YAMP-alpha/GraphVisualization.cs
@@ -7,12 +7,22 @@
 
 namespace YAMP_alpha
 {
+    public enum Channel
+    {
+        Left = 1,
+        Right = 2,
+        Both = 3
+    }
+
     public class GraphVisualization
     {
         private readonly List<float> _left = new List<float>();
-        private readonly List<float> _right = new List<float>(); 
-
+        private readonly List<float> _right = new List<float>();
         private readonly object _lockObj = new object();
+        public Color RightChannelColor { get; set; } = Color.Red;
+        public Color LeftChannelColor { get; set; } = Color.DeepSkyBlue;
+
+        public Channel RenderChannel { get; set; } = Channel.Both;
 
         public bool HasSample => _left.Count > 0 && _right.Count > 0;
 
@@ -30,25 +40,35 @@ public Image Draw(int width, int height)
             var image = new Bitmap(width, height);
             using (Graphics g = Graphics.FromImage(image))
             {
-                Draw(g, width, height);
+                Draw(g, width, height, 2);
             }
             return image;
         }
 
-        public void Draw(Graphics graphics, int width, int height)
+        public void Draw(Graphics graphics, int width, int height, int pixelsPerSample)
         {
             if (!HasSample)
             {
                 return;
             }
-            const int pixelsPerSample = 2;
             var samplesLeft = GetSamplesToDraw(_left, width / pixelsPerSample).ToArray();
             var samplesRight = GetSamplesToDraw(_right, width / pixelsPerSample).ToArray();
 
-            //left channel:
-            graphics.DrawLines(new Pen(Color.DeepSkyBlue, 1), GetPoints(samplesLeft, pixelsPerSample, width, height).ToArray());
-            //right channel:
-            graphics.DrawLines(new Pen(Color.FromArgb(150, Color.Red), 0.5f), GetPoints(samplesRight, pixelsPerSample, width, height).ToArray());
+            switch (RenderChannel)
+            {
+                case Channel.Left:
+                    graphics.DrawLines(new Pen(LeftChannelColor, 1), GetPoints(samplesLeft, pixelsPerSample, width, height).ToArray());
+                    break;
+                case Channel.Right:
+                    graphics.DrawLines(new Pen(Color.FromArgb(150, RightChannelColor), 0.5f), GetPoints(samplesRight, pixelsPerSample, width, height).ToArray());
+                    break;
+                case Channel.Both:
+                    graphics.DrawLines(new Pen(LeftChannelColor, 1), GetPoints(samplesLeft, pixelsPerSample, width, height).ToArray());
+                    graphics.DrawLines(new Pen(Color.FromArgb(150, RightChannelColor), 0.5f), GetPoints(samplesRight, pixelsPerSample, width, height).ToArray());
+                    break;
+                default:
+                    break;
+            }
         }
 
         private IEnumerable<Point> GetPoints(float[] samples, int pixelsPerSample, int width, int height)
@@ -71,7 +91,7 @@ private IEnumerable<Point> GetPoints(float[] samples, int pixelsPerSample, int w
                 yield return new Point(0, halfY);
                 yield return new Point(width, halfY);
             }
-        } 
+        }
 
         private IEnumerable<float> GetSamplesToDraw(List<float> inputSamples, int numberOfSamplesRequested)
         {
@@ -97,6 +117,6 @@ private IEnumerable<float> GetSamplesToDraw(List<float> inputSamples, int number
                 if (Math.Abs(currentMax) < Math.Abs(samples[i]))
                     currentMax = samples[i];
             }
-        } 
+        }
     }
 }
diff --git a/YAMP-alpha/NewMain.cs b/YAMP-alpha/NewMain.cs
index 08615eb..620b24d 100644
--- a/YAMP-alpha/NewMain.cs
+++ b/YAMP-alpha/NewMain.cs
@@ -481,7 +481,13 @@ private void tagEditorToolStripMenuItem_Click(object sender, EventArgs e)
 
         private void pictureBox1_DoubleClick(object sender, EventArgs e)
         {
-            visualisation = new GraphVisualization();
+            if (visualisation == null)
+            {
+                visualisation = new GraphVisualization()
+                {
+                    RenderChannel = Channel.Both
+                };
+            }
             visualizer.Enabled = !visualizer.Enabled;
             if (visualizer.Enabled)
             {