speechui.cs

sound recorder in vb

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using SpeechLib;
using System.Data.OleDb;
using System.IO;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
namespace SpeechUI
{	
	public class SpeechUI : System.Windows.Forms.Form
	{		
		// UI - Recognition panel
		private System.Windows.Forms.Panel panel1;	
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.CheckBox recognition_checkbox;
		private System.Windows.Forms.TextBox recognition_textbox;
		
		// UI - Voice output panel
		private System.Windows.Forms.Panel panel2;				
		private System.Windows.Forms.Panel panel3;
		private System.Windows.Forms.Label label3;				
		private System.Windows.Forms.Label label4;		
		private System.Windows.Forms.Label label5;		
		private System.Windows.Forms.TrackBar rate_trackbar;
		private System.Windows.Forms.ListBox voices_listbox;
		private System.Windows.Forms.Button speak_button;
		
		// UI - Other
		private System.Windows.Forms.Button exit_button;
		private System.ComponentModel.Container components = null;

		// Speech recognition objects
		private const int                       maingrammarId = 10;
		private bool                            speechEnabled = false;
		private bool                            speechInitialized = false;		
		private SpeechLib.SpSharedRecoContext   objRecoContext;
		private SpeechLib.ISpeechRecoGrammar    grammar;		
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Label label2;
		private SpObjectToken	selectedVoice = null;

		public SpeechUI()
		{
			InitializeComponent();
			PopulateVoiceList();	
		}

		private void PopulateVoiceList()
		{
			SpVoice Voice = new SpVoice();
			ISpeechObjectTokens voices = Voice.GetVoices("","");			
			for(int i=0; i<voices.Count; i++)
			{
				SpObjectToken v = voices.Item(i);				
				voices_listbox.Items.Add(v.Id.Substring(v.Id.LastIndexOf("\\")+1));
			}
		}

		private void SpeakText(string text)
		{
			// Create a Text To Speech voice and speak the specified text.
			try 
			{
				//SpeechVoiceSpeakFlags SpFlags = SpeechVoiceSpeakFlags.SVSFlagsAsync;	
		  SpeechVoiceSpeakFlags SpFlags = SpeechVoiceSpeakFlags.SVSFDefault	;
				SpVoice Voice = new SpVoice();				
				if(selectedVoice != null)
				{
					Voice.Voice = selectedVoice;
				}	
				Voice.Rate = rate_trackbar.Value;				
				Voice.Speak(text, SpFlags);				
			}
			catch
			{
				MessageBox.Show("Speak error", "SpeechUI", MessageBoxButtons.OK, MessageBoxIcon.Error);
			}			
		}

		private void speak_button_Click(object sender, System.EventArgs e)
		{
			  DisableSpeechRecognition(); 
			  SpeakText(recognition_textbox.Text);
			  EnableSpeechRecognition();
				 
		}

		private void recognition_checkbox_CheckedChanged(object sender, System.EventArgs e)
		{
			if(recognition_checkbox.Checked)
			{
				if(!speechEnabled)
					if(EnableSpeechRecognition())
					{
						speechEnabled = true;
						MessageBox.Show("Speech On");
					}
					else
						recognition_checkbox.Checked = false;					
			}
			else
			{
				if(speechEnabled)
					if(DisableSpeechRecognition())
					{
						speechEnabled = false;
						MessageBox.Show("Speech Off");
					}
					else 
						recognition_checkbox.Checked = true;
			}
		}

		private void VoiceSelected(object sender, EventArgs e)
		{
			string voicename = (string)((ListBox)sender).SelectedItem;
			SpVoice Voice = new SpVoice();
			ISpeechObjectTokens voices = Voice.GetVoices("","");			
			for(int i=0; i<voices.Count; i++)
			{
				SpObjectToken v = voices.Item(i);		
				string voicetotest = v.Id.Substring(v.Id.LastIndexOf("\\")+1);
				if( string.Compare(voicetotest, voicename) == 0 )
				{
					selectedVoice = v;
					i=voices.Count;
				}
			}
		}

		

		private void OutputlistSelect(object sender, EventArgs e)
		{
			SpeakText( (string)((ComboBox)sender).SelectedItem );
		}

		#region Speech Recognition 
		
		// Hypothesis output event handler for the SpSharedRecoContext object's Hypothesis event.
		public void RecoContext_Hypothesis(int StreamNumber, 
			object StreamPosition, 
			ISpeechRecoResult Result)
		{
//recognition_textbox.AppendText(StreamPosition.ToString()+" Hypothesis: " + Result.PhraseInfo.GetText(0, -1, true) +"\r\n");
		}
		
// Recognition event handler for the SpSharedRecoContext object's Recognition event.
		public void RecoContext_Recognition(int StreamNumber, 
			object StreamPosition, 
			SpeechRecognitionType RecognitionType,
			ISpeechRecoResult Result)
		{
			string word=Result.PhraseInfo.GetText(0, -1, true);
			if(word.ToUpper()=="CLEAR") 
			{
				recognition_textbox.Clear();
				return;
			}		
		DisableSpeechRecognition(); 
		word=word.Replace(".","").Replace("-","");
		if(word.Length <6) word=word.Replace(" ","");
		recognition_textbox.AppendText(word + "...");
		SpeakText(word + "  " + "One moment please.");
        recognition_textbox.Clear();
		 recognition_textbox.AppendText(GetStockQuote(word));
		SpeakText(recognition_textbox.Text);

		EnableSpeechRecognition();

		}		
		private void InitializeSpeechRecognition()
		{
			try
			{
				// Create the main recognition context object. 
				// This sample uses a shared recognition context. 
				// Inproc recognition context is also available.
				objRecoContext = new SpeechLib.SpSharedRecoContext();
				// Attach event handlers for Hypothesis and Recognition events.
				objRecoContext.Hypothesis += new 
					_ISpeechRecoContextEvents_HypothesisEventHandler(
					RecoContext_Hypothesis);
				objRecoContext.Recognition += new 
					_ISpeechRecoContextEvents_RecognitionEventHandler(
					RecoContext_Recognition);				
				grammar = objRecoContext.CreateGrammar(maingrammarId);
				grammar.DictationSetState(SpeechRuleState.SGDSActive);
				object      PropValue = "";
				PropValue = "";
				speechInitialized = true;
			}
			catch(Exception e)
			{
				System.Windows.Forms.MessageBox.Show(
					"Exception caught when initializing SAPI." 
					+ " This application may not run correctly.\r\n\r\n"
					+ e.ToString(),
					"Error");
			}
		}	
		/// <summary>
		///     RebuildGrammar() will update grammar object with current items.
		/// </summary>
		/// <returns>
		///     true if grammar is updated.
		///     false if grammar is not updated, which can happen if speech is 
		///     not enabled or if it's in design mode.
		/// </returns>
		public bool RebuildGrammar()
		{
			// not used here
			return true;
		}

		private bool EnableSpeechRecognition()
		{
			if (speechInitialized == false)
				InitializeSpeechRecognition();
			else
			objRecoContext.State = SpeechRecoContextState.SRCS_Enabled;
			return true;
		}

		private bool DisableSpeechRecognition()
		{
			if( speechInitialized ) 
				objRecoContext.State = SpeechRecoContextState.SRCS_Disabled;
			return true;
		}

		#endregion
		
		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.panel1 = new System.Windows.Forms.Panel();
			this.recognition_textbox = new System.Windows.Forms.TextBox();
			this.recognition_checkbox = new System.Windows.Forms.CheckBox();
			this.label1 = new System.Windows.Forms.Label();
			this.panel2 = new System.Windows.Forms.Panel();
			this.label2 = new System.Windows.Forms.Label();
			this.button1 = new System.Windows.Forms.Button();
			this.panel3 = new System.Windows.Forms.Panel();
			this.label5 = new System.Windows.Forms.Label();
			this.voices_listbox = new System.Windows.Forms.ListBox();
			this.label4 = new System.Windows.Forms.Label();
			this.rate_trackbar = new System.Windows.Forms.TrackBar();
			this.speak_button = new System.Windows.Forms.Button();
			this.label3 = new System.Windows.Forms.Label();
			this.exit_button = new System.Windows.Forms.Button();
			this.panel1.SuspendLayout();
			this.panel2.SuspendLayout();
			this.panel3.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.rate_trackbar)).BeginInit();
			this.SuspendLayout();
			// 
			// panel1
			// 
			this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.panel1.Controls.Add(this.recognition_textbox);
			this.panel1.Controls.Add(this.recognition_checkbox);
			this.panel1.Controls.Add(this.label1);
			this.panel1.Location = new System.Drawing.Point(8, 8);
			this.panel1.Name = "panel1";
			this.panel1.Size = new System.Drawing.Size(629, 199);
			this.panel1.TabIndex = 0;
			// 
			// recognition_textbox
			// 
			this.recognition_textbox.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.recognition_textbox.Location = new System.Drawing.Point(10, 25);
			this.recognition_textbox.Multiline = true;
			this.recognition_textbox.Name = "recognition_textbox";
			this.recognition_textbox.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
			this.recognition_textbox.Size = new System.Drawing.Size(608, 161);
			this.recognition_textbox.TabIndex = 2;
			this.recognition_textbox.Text = "";
			// 
			// recognition_checkbox
			// 
			this.recognition_checkbox.Checked = true;
			this.recognition_checkbox.CheckState = System.Windows.Forms.CheckState.Checked;
			this.recognition_checkbox.Location = new System.Drawing.Point(463, 6);