VoiceList
func prepareVoiceList() {
for voice in AVSpeechSynthesisVoice.speechVoices() {
let voiceLanguageCode = (voice as AVSpeechSynthesisVoice).language
let languageName = NSLocale.currentLocale().displayNameForKey(NSLocaleIdentifier, value: voiceLanguageCode)
let dictionary = ["languageName": languageName, "languageCode": voiceLanguageCode]
arrVoiceLanguages.append(dictionary)
}
}