C# WPF Speech recognition not working.

The event does not fire up i.e. no message box is shown up on speaking the words. Not sure about whether even the engine started or not.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using System.Speech;

using System.Speech.Recognition;

using System.Speech.Synthesis;

using System.Threading;

namespace Summerproject_trial

{

///

/// Interaction logic for MainWindow.xaml

///

public partial class MainWindow : Window

{

private SpeechRecognitionEngine recEngine = new SpeechRecognitionEngine();

public MainWindow()

{

InitializeComponent();

Choices mychoices = new Choices();

mychoices.Add(new string[] {"Ok","Test","Hello"});

GrammarBuilder gb = new GrammarBuilder();

gb.Append(mychoices);

Grammar mygrammar = new Grammar(gb);

recEngine.LoadGrammarAsync(mygrammar);

recEngine.SpeechRecognized += new EventHandler(recEngine_SpeechRecognized);

recEngine.SetInputToDefaultAudioDevice();

}

void recEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)

{

MessageBox.Show("You said: "+e.Result.Text);

//throw new NotImplementedException();

}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Ankur Mistry10y ago
Hi, check and download code.
hope it works.
http://www.c-sharpcorner.com/UploadFile/ansh06031982/texttospeech-in-wcf-using-speechsynthesizer-class/
Sanju Singh11y ago
well abhishek, i am also facing the same problem and i don't have any answer for the problem. If you get some idea, please do share it here. thanks