Speech to text

Question

I am doing a project based on Natural Language Processing. I need to convert Speech to Text first and then check it for any grammatical errors in the text. I am stuck with the code for Speech to Text. I need an urgent help. Can anybody help me out with it?
My email id is [e-mail]

Answer 1

Hi,

You can use  SpeechSynthesizer  for this. To use this you should add System.Speech to your project as reference.

Here is a sample.

SpeechSynthesizer s = new SpeechSynthesizer();
s.SpeakAsync(txtSubject.Text);

Also here is a full code includes some more functionalities.

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.Synthesis;

namespace SystemSpeechMakale
{
    public partial class frmSynthesizer : Form
    {
        SpeechSynthesizer s;
        public frmSynthesizer()
        {
            InitializeComponent();
            s = new SpeechSynthesizer();
            s.SpeakProgress += new EventHandler<SpeakProgressEventArgs>(s_SpeakProgress);
            s.StateChanged += new EventHandler<StateChangedEventArgs>(s_StateChanged);
            s.SpeakCompleted += new EventHandler<SpeakCompletedEventArgs>(s_SpeakCompleted);
        }
        private void frmSynthesizer_Load(object sender, EventArgs e)
        {
            FillGenderCombo();
            FillVoiceAgeCombo();
            FillVoicesCombo();
        }
        void s_SpeakProgress(object sender, SpeakProgressEventArgs e)
        {
            lblProgress.Text = e.Text;
          
        }
        
        private void btnSpeak_Click(object sender, EventArgs e)
        {
           if(rbtnGenderAge.Checked)
           {
                s.SelectVoiceByHints((System.Speech.Synthesis.VoiceGender)cmbGender.SelectedItem, (System.Speech.Synthesis.VoiceAge)cmbAge.SelectedItem);
            }
            else if (rbtnVoice.Checked)
            {
                s.SelectVoice(cmbVoice.SelectedItem.ToString());
            }
            s.SpeakAsync(txtSubject.Text); 
        }
        void s_SpeakCompleted(object sender, SpeakCompletedEventArgs e)
        {
            lblProgress.Text = "";
        }
        void s_StateChanged(object sender, StateChangedEventArgs e)
        {
            lblState.Text = "Eski durum: " + e.PreviousState.ToString() + " Yeni durum: " + e.State;
        }

        private void FillGenderCombo()
        {
            cmbGender.DataSource = Enum.GetValues(typeof(VoiceGender));
        }
        private void FillVoiceAgeCombo()
        {
            cmbAge.DataSource = Enum.GetValues(typeof(VoiceAge));
        }
        private void FillVoicesCombo()
        {
            foreach (InstalledVoice iv in s.GetInstalledVoices())
            {
                cmbVoice.Items.Add(iv.VoiceInfo.Name);
            }
        }

        private void cmbVoice_SelectedIndexChanged(object sender, EventArgs e)
        {
            IEnumerable<InstalledVoice> v = from a in s.GetInstalledVoices() where a.VoiceInfo.Name == cmbVoice.SelectedItem.ToString() select a;
            lblVoiceProperties.Text = "Cinsiyet: " + v.First<InstalledVoice>().VoiceInfo.Gender.ToString() + "\r\nYaş: " + v.First<InstalledVoice>().VoiceInfo.Age.ToString() +
                "\r\nAçıklama: " + v.First<InstalledVoice>().VoiceInfo.Description;   
        }

        private void btnPause_Click(object sender, EventArgs e)
        {
            s.Pause();
        }

        private void btnResume_Click(object sender, EventArgs e)
        {
            s.Resume();
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            Prompt p = s.GetCurrentlySpokenPrompt();
            s.SpeakAsyncCancel(p);
        }

        private void btnWav_Click(object sender, EventArgs e)
        {
            s.SetOutputToWaveFile(@"C:\io.wav");
            s.SpeakAsync(txtSubject.Text);  
        }

        private void btnSSML_Click(object sender, EventArgs e)
        {
            s.SpeakSsmlAsync(txtSubject.Text);
        }
    }
}