Version

src/Zen.Desktop.Host/Features/WaveVisualiser.cs

@@ -106,7 +106,14 @@ private void RenderChannel(int channel)
 
         var axis = channel == 3 ? height * width * channel + height * width / 2 : height * width * (channel + 1) - width;
 
-        CentreChannel(_buffers[channel]);
+        if (channel == 3)
+        {
+            CentreBeeper(_buffers[channel]);            
+        }
+        else
+        {
+            CentreChannel(_buffers[channel]);
+        }
 
         var lastOffset = 0;
 
@@ -171,4 +178,28 @@ private void CentreChannel(float[] buffer)
             _centreBuffer[i] = buffer[(startPos + i) % BufferSize];
         }
     }
+
+    private void CentreBeeper(float[] buffer)
+    {
+        var max = float.MinValue;
+
+        var maxPos = int.MinValue;
+
+        for (var i = 0; i < BufferSize; i++)
+        {
+            if (buffer[i] > max)
+            {
+                max = buffer[i];
+
+                maxPos = i;
+            }
+        }
+
+        var startPos = BufferSize / 2 + maxPos;
+
+        for (var i = 0; i < BufferSize; i++)
+        {
+            _centreBuffer[i] = buffer[(startPos + i) % BufferSize];
+        }
+    }
 }

src/Zen.Z80/Zen.Z80.csproj

@@ -10,7 +10,7 @@
     <Description>A dotnet Z80 emulator implementation.</Description>
     <Copyright>MIT</Copyright>
     <RepositoryUrl>https://github.com/stevehjohn/Zen</RepositoryUrl>
-    <Version>1.0.10</Version>
+    <Version>1.0.11</Version>
   </PropertyGroup>
 
   <ItemGroup>