c# - SpeechSynthesizer.SelectVoice() Fails with "No matching voice is installed or the voice was disabled"

Question

I am modifying Scott Hanselman's BabySmash code to support other languages.

1. I installed the speech platform and a new language per these steps.

2. The language now shows up in the registry:

   

3. The language can now be selected and played by Windows:

   

4. System.Speech.Synthesis.SpeechSynthesizer.GetInstalledVoices() now returns the voice.

5. However SelectVoice() in the code below throws the error "System.ArgumentException: Cannot set voice. No matching voice is installed or the voice was disabled."

string phrase = null;
SpeechSynthesizer speech = new SpeechSynthesizer();
CultureInfo keyboardCulture = System.Windows.Forms.InputLanguage.CurrentInputLanguage.Culture;
InstalledVoice neededVoice = speech.GetInstalledVoices(keyboardCulture).FirstOrDefault();
if (neededVoice == null)
{
    phrase = "Unsupported Language";
}
else if (!neededVoice.Enabled)
{
    phrase = "Voice Disabled";
}
else
{
    speech.SelectVoice(neededVoice.VoiceInfo.Name);
}

speech.Speak(phrase);

6. I've tried upgrading to C:Program Files (x86)Reference AssembliesMicrosoftFramework.NETFrameworkv4.6.1System.Speech.dll.

7. I've verified that the versions of Microsoft.Speech.dll and the language pack match.

   

8. This code works for the default voices I've already had installed.

9. In desperation, I've even tried invoking System.Speech.Internal.Synthesis.VoiceSynthesis.GetVoice() directly through reflection, but same exact error.

I would greatly appreciate any help you can provide! Thanks.

Answer 1

ha ha I feel special: this post on Python actually solved my problem: build configuration platform needs to be x64, not Any CPU!