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Exception thrown: 'System.IO.FileNotFoundException' in Microsoft.Speech.dll RRS feed

  • Question

  • I was trying to run program from figure 3 which is given in below link,

    https://msdn.microsoft.com/en-us/magazine/dn857362.aspx?f=255&MSPPError=-2147217396

    I have started a new Console application in .net framework renamed it as ConsoleSpeechProgram and executed but it is showing me this error:Exception thrown: 'System.IO.FileNotFoundException' in Microsoft.Speech.dll

    Note that I have added Microsoft.Speech.dll in reference as well

    using System;
    using Microsoft.Speech.Recognition;
    using Microsoft.Speech.Synthesis;
    using System.Globalization;
    namespace ConsoleSpeech
    {
      class ConsoleSpeechProgram
      {
        static SpeechSynthesizer ss = new SpeechSynthesizer();
        static SpeechRecognitionEngine sre;
        static bool done = false;
        static bool speechOn = true;
        static void Main(string[] args)
        {
          try
          {
            ss.SetOutputToDefaultAudioDevice();
            Console.WriteLine("\n(Speaking: I am awake)");
            ss.Speak("I am awake");
            CultureInfo ci = new CultureInfo("en-us");
            sre = new SpeechRecognitionEngine(ci);
            sre.SetInputToDefaultAudioDevice();
            sre.SpeechRecognized += sre_SpeechRecognized;
            Choices ch_StartStopCommands = new Choices();
            ch_StartStopCommands.Add("speech on");
            ch_StartStopCommands.Add("speech off");
            ch_StartStopCommands.Add("klatu barada nikto");
            GrammarBuilder gb_StartStop = new GrammarBuilder();
            gb_StartStop.Append(ch_StartStopCommands);
            Grammar g_StartStop = new Grammar(gb_StartStop);
            Choices ch_Numbers = new Choices();
            ch_Numbers.Add("1");
            ch_Numbers.Add("2");
            ch_Numbers.Add("3");
            ch_Numbers.Add("4");
            GrammarBuilder gb_WhatIsXplusY = new GrammarBuilder();
            gb_WhatIsXplusY.Append("What is");
            gb_WhatIsXplusY.Append(ch_Numbers);
            gb_WhatIsXplusY.Append("plus");
            gb_WhatIsXplusY.Append(ch_Numbers);
            Grammar g_WhatIsXplusY = new Grammar(gb_WhatIsXplusY);
            sre.LoadGrammarAsync(g_StartStop);
            sre.LoadGrammarAsync(g_WhatIsXplusY);
            sre.RecognizeAsync(RecognizeMode.Multiple);
            while (done == false) { ; }
            Console.WriteLine("\nHit <enter> to close shell\n");
            Console.ReadLine();
          }
          catch (Exception ex)
          {
            Console.WriteLine(ex.Message);
            Console.ReadLine();
          }
        } // Main
        static void sre_SpeechRecognized(object sender,
          SpeechRecognizedEventArgs e)
        {
          string txt = e.Result.Text;
          float confidence = e.Result.Confidence;
          Console.WriteLine("\nRecognized: " + txt);
          if (confidence < 0.60) return;
          if (txt.IndexOf("speech on") >= 0)
          {
            Console.WriteLine("Speech is now ON");
            speechOn = true;
          }
          if (txt.IndexOf("speech off") >= 0)
          {
            Console.WriteLine("Speech is now OFF");
            speechOn = false;
          }
          if (speechOn == false) return;
          if (txt.IndexOf("klatu") >= 0 && txt.IndexOf("barada") >= 0)
          {
            ((SpeechRecognitionEngine)sender).RecognizeAsyncCancel();
            done = true;
            Console.WriteLine("(Speaking: Farewell)");
            ss.Speak("Farewell");
          }
          if (txt.IndexOf("What") >= 0 && txt.IndexOf("plus") >= 0)
          {
            string[] words = txt.Split(' ');
            int num1 = int.Parse(words[2]);
            int num2 = int.Parse(words[4]);
            int sum = num1 + num2;
            Console.WriteLine("(Speaking: " + words[2] + " plus " +
              words[4] + " equals " + sum + ")");
            ss.SpeakAsync(words[2] + " plus " + words[4] +
              " equals " + sum);
          }
        } // sre_SpeechRecognized
      } // Program
    } // ns

    • Edited by ShivaniJoshi Thursday, February 21, 2019 7:31 AM
    Thursday, February 21, 2019 7:24 AM

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