Sound fixed and complete. More OpCodes to implement

Desktop/BeeperDevice.cs

@@ -7,6 +7,8 @@ namespace Desktop
     {
         private WaveOutEvent _waveOut;
         private BufferedWaveProvider _buffer;
+        private float _lastSample = 0.0f;
+        private float _lastFiltered = 0.0f;
 
         public BeeperDevice()
         {
@@ -25,16 +27,19 @@ namespace Desktop
         public void AddSample(bool isHigh)
         {
             //Buffer overrun check and dump
-            if (_buffer.BufferedDuration.TotalMilliseconds > 100)
+            while (_buffer.BufferedDuration.TotalMilliseconds > 80)
             {
-                _buffer.ClearBuffer();
+                Thread.Sleep(1);
             }
 
             // Convert the boolean into a physical sound wave (-0.2 or +0.2)
-            float sampleValue = isHigh ? 0.2f : -0.2f;
+            float rawSample = isHigh ? 0.2f : -0.2f;
+            float filteredSample = rawSample - _lastSample + 0.995f * _lastFiltered;
+            _lastSample = rawSample;
+            _lastFiltered = filteredSample;
 
             // Convert the float to bytes and drop it in the pipe
-            byte[] bytes = BitConverter.GetBytes(sampleValue);
+            byte[] bytes = BitConverter.GetBytes(filteredSample);
             _buffer.AddSamples(bytes, 0, 4);
         }
     }