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POSpeech Recognition to display pictures from a listbox
 

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    <p>I am having an error with this Speech Recognition, I keep getting "At least one grammar must be loaded before doing a recognition" I can't get the images to display when you say its corresponding linked name.</p> <pre><code>using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using SpeechLib; using System.IO; using System.Speech.Recognition; using System.Globalization; namespace SimpleSpeechRecognition { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private SpeechRecognitionEngine recognizer; private void Form1_Load(object sender, EventArgs e) { speechListBox1.Items.Add("Dog"); speechListBox1.Items.Add("Elephant"); speechListBox1.SpeechEnabled = true; recognizer = new SpeechRecognitionEngine(new CultureInfo("en-GB")); recognizer.SetInputToDefaultAudioDevice(); Choices choices = new Choices("Dog", "Elephant"); GrammarBuilder m_GrammarBuilder = new GrammarBuilder(choices); Grammar m_Speech = new Grammar(m_GrammarBuilder); recognizer.LoadGrammar(m_Speech); recognizer.SpeechRecognized += new EventHandler&lt;SpeechRecognizedEventArgs&gt;(recognizer_SpeechRecognized); recognizer.RecognizeAsync(RecognizeMode.Multiple); } void recognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e) { foreach (RecognizedWordUnit word in e.Result.Words) { switch (word.Text) { case "Dog": pictureBox1.Image = Image.FromFile("C:\\" + "dog.jpg");; break; case "Elephant": pictureBox1.Image = Image.FromFile("C:\\" + "elephant.jpg"); break; } } } private void speechListBox1_SelectedIndexChanged(object sender, EventArgs e) { //MessageBox.Show(speechListBox1.SelectedItems[0].ToString()); SayPhrase(speechListBox1.SelectedItems[0].ToString()); //pictureBox1.Image = Image.FromFile("C:\\" + "dog.jpg"); //pictureBox1.Image = Image.FromFile(((FileInfo)speechListBox1.SelectedItem).FullName); pictureBox1.Refresh(); } private void SayPhrase(string PhraseToSay ) { SpeechVoiceSpeakFlags SpFlags = new SpeechVoiceSpeakFlags(); SpVoice Voice = new SpVoice(); Voice.Speak(PhraseToSay, SpFlags); } } } </code></pre>
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