In this article, we will learn how to create a Text to Speech Converter in a C# Windows Forms application using the SpeechSynthesizer class.

Let's Begin

Step 1

Create a new project then select Windows Forms application in C# and give it a name.



Step 2

Drop a RichTextBox and four Button Controls from the ToolBox.



Step 3

Right-click on the References Folder then click on Add Reference.



Step 4

Select the System.Speech Assembly and click on OK.



After adding it, you will see System.Speech assembly under the References folder.



Step 5

Go to Form1.cs (code behind .cs file) and add System.Speech (the System.Speech namespace contains types that support speech recognition) and System.Speech.Synthesis namespace (the System.Speech.Synthesis namespace contains classes for initializing and configuring a speech synthesis engine and for generating speech and so on).

  1. using System;
  2. using System.Windows.Forms;
  3. using System.Speech;
  4. using System.Speech.Synthesis;
  6. namespace TextToSpeechConverter
  7. {
  8. public partial class Form1 : Form
  9. {
  10. public Form1()
  11. {
  12. InitializeComponent();
  13. }
  14. //SpeechSynthesizer Class Provides access to the functionality of an installed a speech synthesis engine.
  15. SpeechSynthesizer speechSynthesizerObj;
  16. private void Form1_Load(object sender, EventArgs e)
  17. {
  18. speechSynthesizerObj = new SpeechSynthesizer();
  19. btn_Resume.Enabled = false;
  20. btn_Pause.Enabled = false;
  21. btn_Stop.Enabled = false;
  22. }
  25. private void btn_Speak_Click(object sender, EventArgs e)
  26. {
  27. //Disposes the SpeechSynthesizer object
  28. speechSynthesizerObj.Dispose();
  29. if(richTextBox1.Text!="")
  30. {
  31. speechSynthesizerObj = new SpeechSynthesizer();
  32. //Asynchronously speaks the contents present in RichTextBox1
  33. speechSynthesizerObj.SpeakAsync(richTextBox1.Text);
  34. btn_Pause.Enabled = true;
  35. btn_Stop.Enabled = true;
  36. }
  37. }
  39. private void btn_Pause_Click(object sender, EventArgs e)
  40. {
  41. if(speechSynthesizerObj!=null)
  42. {
  43. //Gets the current speaking state of the SpeechSynthesizer object.
  44. if(speechSynthesizerObj.State==SynthesizerState.Speaking)
  45. {
  46. //Pauses the SpeechSynthesizer object.
  47. speechSynthesizerObj.Pause();
  48. btn_Resume.Enabled = true;
  49. btn_Speak.Enabled = false;
  50. }
  51. }
  52. }
  54. private void btn_Resume_Click(object sender, EventArgs e)
  55. {
  56. if (speechSynthesizerObj != null)
  57. {
  58. if (speechSynthesizerObj.State == SynthesizerState.Paused)
  59. {
  60. //Resumes the SpeechSynthesizer object after it has been paused.
  61. speechSynthesizerObj.Resume();
  62. btn_Resume.Enabled = false;
  63. btn_Speak.Enabled = true;
  64. }
  65. }
  66. }
  68. private void btn_Stop_Click(object sender, EventArgs e)
  69. {
  70. if(speechSynthesizerObj!=null)
  71. {
  72. //Disposes the SpeechSynthesizer object
  73. speechSynthesizerObj.Dispose();
  74. btn_Speak.Enabled = true;
  75. btn_Resume.Enabled = false;
  76. btn_Pause.Enabled = false;
  77. btn_Stop.Enabled = false;
  78. }
  79. }
  80. }
  81. }
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