---
title: "Example of SpeechSynthesizer class in WPF"  
description: "In WPF Microsoft provide a new API that allows developers to build speech enabled applications. Speech synthesis is a feature that generates spoken au"  
author: "Sachindra Singh"  
published: 2011-08-01  
updated: 2019-09-07  
canonical: https://www.mindstick.com/articles/593/example-of-speechsynthesizer-class-in-wpf  
category: "wpf"  
tags: ["wpf"]  
reading_time: 2 minutes  

---

# Example of SpeechSynthesizer class in WPF

In WPF Microsoft provide a new API that allows developers to build speech enabled applications. Speech synthesis is a feature that generates spoken audio based on text you supply. In this article I am trying to show how to use new API in application, simply add a reference to System.Speech and include the following code to your project.\

##### Code .XAML

```
<Window x:Class="ReportWPF.Window5"        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"        Title="Window5" Height="300" Width="594">    <Grid>        <Label Content="  Example Of Speech Synthesis in WPF" Height="43" HorizontalAlignment="Left" Margin="73,15,0,0" Name="label1" VerticalAlignment="Top" Width="431" FontFamily="Cambria" FontWeight="Normal" FontSize="25">            <Label.Foreground>                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">                    <GradientStop Color="Black" Offset="0" />                    <GradientStop Color="#FF71FF00" Offset="1" />                </LinearGradientBrush>            </Label.Foreground>        </Label>        <Label Height="36" Content="Enter Text for Speech" HorizontalAlignment="Left" Margin="87,89,0,0" Name="label2" VerticalAlignment="Top" Width="191" FontFamily="Shruti" FontWeight="Bold" FontSize="18" />        <TextBox Height="23" HorizontalAlignment="Left" Margin="300,97,0,0" Name="textBox1" VerticalAlignment="Top" Width="203" />        <Button Content="Start Voice" Height="35" HorizontalAlignment="Left" Margin="246,160,0,0" Name="button1" VerticalAlignment="Top" Width="89" Foreground="#FFECDADA" FontFamily="Times New Roman" FontSize="18" Click="button1_Click">            <Button.Background>                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">                    <GradientStop Color="Black" Offset="0" />                    <GradientStop Color="#FF36FF00" Offset="1" />                </LinearGradientBrush>            </Button.Background>        </Button>    </Grid></Window>
```

##### Code .cs:

```
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Shapes;using System.Speech.Synthesis;// Add speech namespace in applicationnamespace ReportWPF{             public partial class Window5 : Window    {        public Window5()        {            InitializeComponent();        }          private void button1_Click(object sender, RoutedEventArgs e)        {            SpeechSynthesizer synthesizer = new  SpeechSynthesizer();//create insatnce of SpeechSynthesizer class            PromptBuilder promptBuilder = new PromptBuilder();//create insatnce of PromptBuilder class              promptBuilder.AppendText(textBox1.Text);//AppendText is a method of PromptBuilder class that is parameterized that take string value              synthesizer.SpeakAsync(promptBuilder);//SpeakAsync is a method of SpeechSynthesizer class that is parameterized that take object of PromptBuilder class        }    }}
```

##### Screen Shot:

In below screen shot I have entered some text in textbox than I clicked on button system narrator will narrate all text in given textbox.

![Example of SpeechSynthesizer class in WPF](https://www.mindstick.com/mindstickarticle/3fabde3d-5803-4e7d-893c-b7f3eeb5e877/images/4d5a8988-d64a-4794-a0ab-5669a5174571.png)

---

Original Source: https://www.mindstick.com/articles/593/example-of-speechsynthesizer-class-in-wpf

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