diff --git a/app/src/main/java/org/ntlab/amaryllis/client/VoiceTest.java b/app/src/main/java/org/ntlab/amaryllis/client/VoiceTest.java
index d4acdfe..e253d89 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/VoiceTest.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/VoiceTest.java
@@ -35,49 +35,59 @@
 
     //再生
     private void startPlay(){
-        mp = new MediaPlayer();
+        //mp = new MediaPlayer();
         StartChange = 1;
         //mp = MediaPlayer.create(this,R.raw.bgm);
-        try {
-            //mp = new MediaPlayer();
-            mp.setDataSource(file.getAbsolutePath());
-            //OutputStream filePath = openFileOutput("a",MODE_PRIVATE);
-            //mp.setDataSource(filePath);
-            mp.prepare();
-            mp.setLooping(false);
+
+        if(mp.isPlaying()){
+            mp.stop();
+        }else {
+            try {
+                //mp = new MediaPlayer();
+                mp.setDataSource(file.getAbsolutePath());
+                //OutputStream filePath = openFileOutput("a",MODE_PRIVATE);
+                //mp.setDataSource(filePath);
+                mp.prepare();
+            }catch(IllegalStateException e){
+                e.printStackTrace();
+                //mp.setLooping(false);
+                //mp.seekTo(0);
+                //if(StartChange == 1){
+                //positionBar = findViewById(R.id.positionBar);
+                //positionBar.setMax(totalTime);
+                //positionBar.setOnSeekBarChangeListener(
+                //new SeekBar.OnSeekBarChangeListener(){
+                //public void onProgressChanged(SeekBar seekBar,int progress,boolean fromUser){
+                //if(fromUser){
+                //mp.seekTo(progress);
+                //positionBar.setProgress(progress);
+                //}
+                //}
+
+                //public void onStartTrackingTouch(SeekBar seekBar){
+
+                //}
+
+                //public void onStopTrackingTouch(SeekBar seekBar){
+
+                //}
+                //}
+                //);
+                //totalTime = mp.getDuration();
+                //String S_totalTime = createTimeLabel(totalTime);//createTimeLabelにtotalTimeを渡す。
+                //TextView voiceTime = (TextView)findViewById(R.id.voiceTime);
+                //voiceTime.setText(S_totalTime);
+
+                //}
+
+                //mp.start();
+
+
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
             mp.seekTo(0);
-            //if(StartChange == 1){
-                positionBar = findViewById(R.id.positionBar);
-                positionBar.setMax(totalTime);
-                positionBar.setOnSeekBarChangeListener(
-                        new SeekBar.OnSeekBarChangeListener(){
-                            public void onProgressChanged(SeekBar seekBar,int progress,boolean fromUser){
-                                if(fromUser){
-                                    mp.seekTo(progress);
-                                    positionBar.setProgress(progress);
-                                }
-                            }
-
-                            public void onStartTrackingTouch(SeekBar seekBar){
-
-                            }
-
-                            public void onStopTrackingTouch(SeekBar seekBar){
-
-                            }
-                        }
-                );
-                totalTime = mp.getDuration();
-                String S_totalTime = createTimeLabel(totalTime);//createTimeLabelにtotalTimeを渡す。
-                TextView voiceTime = (TextView)findViewById(R.id.voiceTime);
-                voiceTime.setText(S_totalTime);
-                //voiceTime.setText("S_totalTime");
-
-            //}
-
             mp.start();
-        }catch(Exception e){
-            e.printStackTrace();
         }
     }
 
@@ -141,6 +151,7 @@
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_voice_test);
         file = new File(getFilesDir(),"Sample.3gp");
+        mp = new MediaPlayer();