title: AudioTrack, SoundPool or MediaPlayer Which Should I use?
body: <p>I need to play multiple audio files, with different duration, like 5 to 30 seconds. And i want to set volume independently for right/left channel and also to apply effects, like Reverb or Distortion. So, Which API should i use? </p>
  
  <p>Also, i can't find too much doc on AudioTrack API. Do you know where can i find examples?
  Thx.</p>