[Android] Remove gap between loops on media player

I use MediaPlayer to playing loop background sounds in our apps. The file is .ogg audio format.

MediaPlayer mp1 = MediaPlayer.create(context, R.raw.track1); mp1.setLooping(true); // setting loop mp1.start();

I notice there is a gap when the audio file loops. How to remove the gap when the audio file replays again? Thank you.