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SpeechSynthesizer.GetInstalledVoices Method

Returns all of the installed speech synthesis (text-to-speech) voices.

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

public ReadOnlyCollection<InstalledVoice> GetInstalledVoices()

Return Value

Type: System.Collections.ObjectModel.ReadOnlyCollection<InstalledVoice>
Returns a read-only collection of the voices currently installed on the system.

A voice is an engine for speech synthesis (text-to-speech or TTS) that is installed on the system.

The following example is part of a console application that initializes a SpeechSynthesizer object and outputs to the console a list of the installed voices (engines for speech synthesis) and demonstrates the information that is available for each voice.

using System;
using System.Speech.Synthesis;
using System.Speech.AudioFormat;

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

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

        // Output information about all of the installed voices. 
        Console.WriteLine("Installed voices -");
        foreach (InstalledVoice voice in synth.GetInstalledVoices())
          VoiceInfo info = voice.VoiceInfo;
          string AudioFormats = "";
          foreach (SpeechAudioFormatInfo fmt in info.SupportedAudioFormats)
            AudioFormats += String.Format("{0}\n",

          Console.WriteLine(" Name:          " + info.Name);
          Console.WriteLine(" Culture:       " + info.Culture);
          Console.WriteLine(" Age:           " + info.Age);
          Console.WriteLine(" Gender:        " + info.Gender);
          Console.WriteLine(" Description:   " + info.Description);
          Console.WriteLine(" ID:            " + info.Id);
          Console.WriteLine(" Enabled:       " + voice.Enabled);
          if (info.SupportedAudioFormats.Count != 0)
            Console.WriteLine( " Audio formats: " + AudioFormats);
            Console.WriteLine(" No supported audio formats found");

          string AdditionalInfo = "";
          foreach (string key in info.AdditionalInfo.Keys)
            AdditionalInfo += String.Format("  {0}: {1}\n", key, info.AdditionalInfo[key]);

          Console.WriteLine(" Additional Info - " + AdditionalInfo);
      Console.WriteLine("Press any key to exit...");

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.