Lecture_3_Practical_STT_code_block_AI

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Speech.Synthesis;
using System.Speech.Recognition;
using System.Diagnostics;
//The System.Diagnostics namespace provides classes that allow you to interact with system processes, event logs
namespace STT123
{
    public partial class Form1 : Form
    {
        SpeechSynthesizer speechsynth = new SpeechSynthesizer();
        SpeechRecognitionEngine receng = new SpeechRecognitionEngine();
        Choices choice = new Choices();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            button1.Enabled = false;
            button2.Enabled = true;
            choice.Add(new string[] { "hello", "how are you", "what is the current time", "open blog", "thank you", "close" });
            Grammar gr = new Grammar(new GrammarBuilder(choice));
            try
            {
                receng.RequestRecognizerUpdate();
                receng.LoadGrammar(gr);
                receng.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(receng_SpeechRecognized);
                receng.SetInputToDefaultAudioDevice();
                receng.RecognizeAsync(RecognizeMode.Multiple);
            }
            catch (Exception ex)// handle exception
            {
                MessageBox.Show(ex.Message, "Error");

            }
        }

        private void receng_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            switch (e.Result.Text.ToString())
            {
                case "hello":
                    speechsynth.SpeakAsync("hai user");
                    break;
                case "how are you":
                    speechsynth.SpeakAsync("iam fine. what about you");
                    break;
                case "what is the current time":
                    speechsynth.SpeakAsync("right now it is " + DateTime.Now.ToLongTimeString());
                    break;
                case "thank you":
                    speechsynth.SpeakAsync("well. same to you");
                    break;
                case "open blog":
                    Process.Start("chrome", "http://Schoology.com");
                    break;
                case "close":
                    speechsynth.Speak("see you later. bye bye");
                    Application.Exit();
                    break;

            }
            list1.Items.Add(e.Result.Text.ToString());
        }

        private void button2_Click(object sender, EventArgs e)
        {
            receng.RecognizeAsyncStop();
            button1.Enabled = true;
            button2.Enabled = false;
        }
    }
}