.net – Good free text to speech API for spelling word tutor


I am writting a spelling word application for my son and would like recomendations for good APIs that can be understood when it speaks. I am programming in .Net so something that will interop with that would be handy. Thanks in advance.

Best Solution

MS Speech SDK. It is exposed via a .NET assembly. Very easy to use. My kids loved it. Free.

using System.Speech.Synthesis;

public class SpeakHelloWorld
  public static void Main(string[] args)
      SpeechSynthesizer synthesizer = new SpeechSynthesizer();
      synthesizer.Speak("As for me and my house, ...");

The sounds generated by the code above do not use natural inflection, with pauses and so on. So with a complete sentence, it does not come out sounding human. But single words sound ok, just sort of robotic.

For a little kid, with a small enough set of words, you might want to just record your own voice saying the words. I did that with a USA state puzzle, to pronounce the state names, rather than resort to the synthesizer.

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