InstalledSpeechRecognizers.Default Property

public:
static property SpeechRecognizerInformation^ Default {
         SpeechRecognizerInformation^ get ();
}  

// Attempt to create recognizer and verify speech locale matches title. If the 
// default recognition locale does not match title locale, speech should not be
// enabled by default. Only if the user explicitly chooses to enable speech in a
// specific locale should a non-default locale be used.

Windows::Xbox::Speech::Recognition::SpeechRecognizer^ m_reco;
{
  // Create a speech recognizer. If the default speech recognition language is 
  //  unsupported, the following line will raise an exception.
  m_reco = ref new SpeechRecognizer();

  // To ensure a good user experience, speech should only be enabled by default
  //  if the language the system uses for speech recognition matches the game's.
  wchar_t localeName[ LOCALE_NAME_MAX_LENGTH ];
  GetUserDefaultLocaleName( localeName, ARRAYSIZE( localeName ) );

  if ( 0 != _wcsicmp( localeName, m_reco->GetRecognizer()->Language->Data() ) )
  {
    // Speech should not be initialized due to locale mismatch
    m_reco = nullptr;
  }
  else
  {
    // Initialize speech as the locales match
  }
}