title: How to add a sound to Android pico TTS engine?
body: <p>I'm using the pico default android TTS engine with IPA caracters doing this</p>
  
  <pre><code>String text3 = "&lt;speak xml:lang=\"fr-FR\"&gt; &lt;phoneme alphabet=\"ipa\" ph=\"+"+words+"\"/&gt;.&lt;/speak&gt;";
          myTTS.speak(text3, TextToSpeech.QUEUE_ADD, null);
  </code></pre>
  
  <p>It's generally working, but for some letters it doesn't like "ã" or "ɑ" etc.</p>
  
  <p>So my question is, How can I add theses letters/sounds, to this TTS engine ?</p>