Speech Recognition c# [Windows Forms]

Question

In my voice recognition project using c#, I want to highlight the text in the listbox when the word is read so that to be recognized. can you help me?

Veena Sarda · Accepted Answer

I assume you have a list box listBox1. You need to use the SelectedIndex property to highlight the text being read. Before switch(word.Text) use this -
listBox1.SelectedIndex = listBox1.FindString(word.text);
or inside each case use listBox1.SelectedIndex = listBox1.FindString("institute"); and so on.

Shannen Londres · Answer

thanks a lot :)

Shannen Londres · Answer

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Speech.Recognition; using System.Speech.Recognition.SrgsGrammar; using System.IO;
namespace SpeechRecognitionExample {     public partial class Form1 : Form     {         private SpeechRecognitionEngine recognitionEngine;
public void stop()         {             recognitionEngine.RecognizeAsyncStop();             //recognitionEngine.RecognizeAsyncCancel();         }         public void start()         {             recognitionEngine.RecognizeAsync(RecognizeMode.Multiple);         }
public Form1()         {             InitializeComponent();             button1.Hide();             recognitionEngine = new SpeechRecognitionEngine();             recognitionEngine.SetInputToDefaultAudioDevice();             recognitionEngine.SpeechRecognized += (s, args) =>             {
foreach (RecognizedWordUnit word in args.Result.Words)                 {                     if (word.Confidence > 0.0f)
txtOutput.Text += word.Text + " ";                     txtOutput.Text += Environment.NewLine;                     //recognitionEngine.RecognizeAsync(RecognizeMode.Single);
switch (word.Text)                     {                         case "institute":                             stop();                             pictureBox1.Show();                             pictureBox1.Image = Image.FromFile("C:/Users/Shannen/Desktop/anigif.gif");                             button1.Show();                         break;
case "communicate":                             stop();                             pictureBox1.Show();                             pictureBox1.Image = Image.FromFile("C:/Users/Shannen/Desktop/3D Files/communicate.gif");                             button1.Show();                         break;
default:                             stop();                             DialogResult result = MessageBox.Show("NO match found. Try Again", "confirm", MessageBoxButtons.OKCancel);                             stop();                             if (result == DialogResult.OK)                             {                                 start();                             }                             else if (result == DialogResult.Cancel)                             {                                 stop();                             }                         break;
}                 }             };
recognitionEngine.LoadGrammar(new DictationGrammar());         }                 private void Form1_Load(object sender, EventArgs e)         {                        MessageBox.Show("WARNING! Must be in a quiet environment.");                     }
private void btnStart_Click(object sender, EventArgs e)         {             recognitionEngine.RecognizeAsync(RecognizeMode.Multiple);         }
private void btnStop_Click(object sender, EventArgs e)         {                          recognitionEngine.RecognizeAsyncStop();             Close();         }
private void button1_Click(object sender, EventArgs e)         {             start();             pictureBox1.Hide();             button1.Hide();         }
} }
I'm using system.speech library of .NET in c#. In the listbox, I wanna highlight the text if it was being read.

Veena Sarda · Answer

Which version of SAPI are you using? Can you post part of your code here?