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    <p>It's much more advisable to use NAudio's <code>BufferedWaveProvider</code> instead of the whole reset event / queue. It was designed for scenarios like these. </p> <p>You will encounter breaks when the player's buffer runs out abruptly - the data is not streamed fast enough.</p> <p>Secondly, let me clear up the function signature:</p> <p><code>int Read(float[] buffer, int offset, int sampleCount)</code></p> <p>You will be supplied with a buffer, an offset in the buffer, and a chunk size. The value you returned indicates the number of items you could supply for this Read operation. You are <strong>not required</strong> to supply an exact number of bytes as corresponds to the samples requested.</p> <p>So if you wanted to supply silence, don't construct and return a buffer of zeros, and instead simply return 0 as the read length.</p> <p>Finally, if you don't want an abrupt cut off, you can slowly decrease the amplitude of the last set of samples - it can be as simple as multiplying by <code>(N - n) / N</code> (n ϵ [0, N]). Cut off due to a buffer underrun is an entirely different issue. </p> <p><strong>N.B.</strong></p> <p>Let me add that your present solution is a not a good way to do this in production. Using a lot of objects in between will eventually lead to a lot of latency issues when garbage collection comes knocking. Mark Heath, the author of NAudio, has used a lot of tricks to minimize Garbage collection, like reusing buffers, EventArgs and the like, so it would be unjust if it went to waste.</p>
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    1. COI dont know much about nAudio, but I agree with Asti's comments and would like to add that using AutoResetEvents (or any WaitHandle) with Rx is a code smell.
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    2. CO@asti, 1) Thanks, I wasn't aware of BufferedWaveProvider. 2) I understood that returning 0 from Read, is the same as saying 'end of stream'. Regarding your N.B, I agree, and this isn't for production quality code, Its for a simple and easy to read Signal Processing pipeline that students can play with.
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    3. CO@LeeCampbell Agreed, and the current version of the code doesn't use any syncronization, I added these to rule out a threading issue as a cause at the time.
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