title: How to change audio tempo and pitch individuality using ffmpeg?
body: <p>I have managed to play audio files using ffmpeg and AudioTrack class in my android project. I can change the speed of audio using AudioTrack class setRate method. But it also change the pitch of audio, I want to change only Tempo of audio but I found no solution on net. </p>
  
  <p>anyone can please help me on this as there is no support for this.</p>