diff --git a/app/src/main/java/com/frank/ffmpeg/AudioPlayer.java b/app/src/main/java/com/frank/ffmpeg/AudioPlayer.java
index 6562c53..6bc385d 100644
--- a/app/src/main/java/com/frank/ffmpeg/AudioPlayer.java
+++ b/app/src/main/java/com/frank/ffmpeg/AudioPlayer.java
@@ -23,11 +23,6 @@ public class AudioPlayer {
 
     public native void release();
 
-    //using OpenSL ES to play
-    public native void playAudio(String audioPath);
-
-    public native void stop();
-
     /**
      * Create an AudioTrack instance for JNI calling
      *