SpeechSynthesizer.SpeakAsync Method (String)


Asynchronously speaks the contents of a string.

Namespace:   System.Speech.Synthesis
Assembly:  System.Speech (in System.Speech.dll)

public Prompt SpeakAsync(
	string textToSpeak


Type: System.String

The text to speak.

Return Value

Type: System.Speech.Synthesis.Prompt

Returns the object that contains the content to speak.

To asynchronously speak a string that contains SSML markup, use the SpeakSsmlAsync method. To synchronously speak the contents of a string, use the Speak method. You can cancel the asynchronous speaking of a prompt with the SpeakAsyncCancel or the SpeakAsyncCancelAll method.

As shown in the following example, the SpeakAsync method provides the simplest means to generate speech output asynchronously.

using System;
using System.Speech.Synthesis;

namespace SampleSynthesis
  class Program
    static void Main(string[] args)

      // Initialize a new instance of the SpeechSynthesizer.
      SpeechSynthesizer synth = new SpeechSynthesizer();

      // Configure the audio output. 

      // Speak a string asynchronously.
      synth.SpeakAsync("What is your favorite color?");

      Console.WriteLine("Press any key to exit...");

.NET Framework
Available since 3.0
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