Text Speech Example in iOS 8

TextSpeechExample8.m

// iOS 8 example
- (void)speechText:(NSString *)text
{
    AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc] init];
    AVSpeechUtterance *utterance = [AVSpeechUtterance speechUtteranceWithString:text];
    utterance.rate = AVSpeechUtteranceMinimumSpeechRate;
    utterance.volume = 1;
    // initialize voice with language code
    AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:[AVSpeechSynthesisVoice currentLanguageCode]];
    utterance.voice = voice;
    [synthesizer speakUtterance:utterance];
}

TextSpeechExample9.m

// iOS 9 example
- (void)speechText:(NSString *)text
{
    AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc] init];
    AVSpeechUtterance *utterance = [AVSpeechUtterance speechUtteranceWithString:text];
    utterance.rate = AVSpeechUtteranceMinimumSpeechRate;
    utterance.volume = 1;
    // initialize voice with voice identifier 
    AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithIdentifier:AVSpeechSynthesisVoiceIdentifierAlex];
    utterance.voice = voice;
    [synthesizer speakUtterance:utterance];
}