title: Bad performance in the ui thread which TextToSpeech
body: <p>My app record video and use <a href="http://developer.android.com/intl/es/reference/android/speech/tts/TextToSpeech.html" rel="nofollow">TextToSpeech</a>->android.speech.tts.TextToSpeech.<a href="http://developer.android.com/intl/es/reference/android/speech/tts/TextToSpeech.html#speak%28java.lang.String,%20int,%20java.util.HashMap%3Cjava.lang.String,%20java.lang.String%3E%29" rel="nofollow">speak</a>() at the same time.</p>
  
  <p>If I run in high device like 4 procesor at 1.5 ghz works ok. But if I use in 2 procesor 1.1 ghz device ui thread go very slow, with freezing of 2-6 seconds.</p>
  
  <p>I know that problem is in TextToSpeech because if I don´t use it and record video the ui thread works very fluently in low device. If I use TextToSpeech + record video ui thread don´t work and also voice freeze 1-2 seg.</p>
  
  <p>Is there any way to improve performance of TextToSpeech.speak()?</p>