Add project

src/CachedSound.cs

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+using System.Collections.Generic;
+using System.Linq;
+using NAudio.Wave;
+
+// https://mark-dot-net.blogspot.de/2014/02/fire-and-forget-audio-playback-with.html
+// Mark Heath 2014
+
+namespace SpeechBot
+{
+    class CachedSound
+    {
+        public float[] AudioData { get; private set; }
+        public WaveFormat WaveFormat { get; private set; }
+
+        public CachedSound(string audioFileName)
+        {
+            using (var audioFileReader = new AudioFileReader(audioFileName))
+            {
+                // TODO: could add resampling in here if required
+                WaveFormat = audioFileReader.WaveFormat;
+                var wholeFile = new List<float>((int)(audioFileReader.Length / 4));
+                var readBuffer = new float[audioFileReader.WaveFormat.SampleRate * audioFileReader.WaveFormat.Channels];
+                int samplesRead;
+
+                while ((samplesRead = audioFileReader.Read(readBuffer, 0, readBuffer.Length)) > 0)
+                {
+                    wholeFile.AddRange(readBuffer.Take(samplesRead));
+                }
+
+                AudioData = wholeFile.ToArray();
+            }
+        }
+    }
+}