Make Your C# Application Speak

We are going to use our one base class from .NET framework, which will show a simple demonstration of SAPI.

Introduction

The Windows OS has incredible speech integration. You have either used a Windows application or your Android smart phone.

In our native Windows 7 Operating System, we have the Speech Application Program Interface (SAPI).

One of the applications of this is Windows speech recognition.

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Background

We will use our one base class from the .NET Framework to show a simple demonstration of SAPI.

User Interface Design

For now, we will design a small UI that consists of a Label, Text Box and a Button.

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It's as simple as a basic form with a few controls. Try to have a look-alike design. Or, you may have your own application. For the time being, I will use this design.

C# Back End Code

Foe the SAPI, we need a reference for the "Microsoft Speech Object Library".

So, do it yourself.

(* Click on "Add Reference" then select the "COM" Tab then select "Microsoft Speech Object Library".)

Then add the following:

Using SpeechLib; // in top of the .cs Code of your Form.

Now, we will program the Click Event for the button.

// Create an Object of SpVoice class.
SpVoice voice =new SpVoice(); //voice is Object name.
voice.Speech(textBox1.text, SpeechVoiceSpeakFlag.SVSFDefault);
// call the Speak() Method and two argument.

In the first argument, a string Type value, that you want to be spoken by the computer. It may be any variable or any TextBox content.

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