I want a SDK(API) for speech recognition. like google speech recognition. But it should be OFFLINE and FREE and also should compatible with ASP.NET C#.

any suggestion will be appreciated :)

1 Answer 1


Windows has one in .net already.

Get Started with Speech Recognition



Just add a reference to System.Speech.dll.

  • Thanks for the reply,Actually I have tried this one. It's not accurate. Do you know more accurate one? Jul 27, 2017 at 13:47

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