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Note

Please see Azure Cognitive Services for Speech documentation for the latest supported speech solutions.

SpeechSynthesizer.GetInstalledVoices Method

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

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

Syntax

'Declaration
Public Function GetInstalledVoices As ReadOnlyCollection(Of InstalledVoice)
'Usage
Dim instance As SpeechSynthesizer
Dim returnValue As ReadOnlyCollection(Of InstalledVoice)

returnValue = instance.GetInstalledVoices()
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.

Remarks

A voice is an installed Runtime Language for speech synthesis (TTS, or text-to-speech). The Microsoft Speech Platform Runtime 11 and Microsoft Speech Platform SDK 11 do not include any Runtime Languages for speech synthesis. You must download and install a Runtime Language for each language in which you want to generate synthesized speech. A Runtime Language includes the language model, acoustic model, and other data necessary to provision a speech engine to perform speech synthesis in a particular language. See InstalledVoice for more information.

Examples

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 (listed in the registry as voice tokens) and demonstrates the information that is available for each voice.

using System;
using Microsoft.Speech.Synthesis;
using Microsoft.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",
            fmt.EncodingFormat.ToString());
          }

          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);
          }
          else
          {
            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();
        }
      }
      Console.WriteLine("Press any key to exit...");
      Console.ReadKey();
    }
  }
}

See Also

Reference

SpeechSynthesizer Class

SpeechSynthesizer Members

GetInstalledVoices Overload

Microsoft.Speech.Synthesis Namespace