title: How to get difference language code for iOS 7 AVSpeechUtterance text to speech?
body: <p>I want to use iOS 7 new speech synthezis API, and my application is localized in french &amp; english,german,japanese,etc.i want set language code to read text.How to get language code?</p>
  
  <pre><code>utterance.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"en-ZA"];
  </code></pre>