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 0554c2f..d4acdfe 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/VoiceTest.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/VoiceTest.java
@@ -86,6 +86,7 @@
         try{
             mp.stop();
             mp.prepare();
+            mp.release();
         }catch(IllegalStateException e){
             e.printStackTrace();
         }catch(Exception e){
@@ -152,8 +153,8 @@
             }
         });
 
-        Button Teisi = (Button)findViewById(R.id.button3);
-        Teisi.setOnClickListener(new View.OnClickListener(){
+        Button RTeisi = (Button)findViewById(R.id.button3);
+        RTeisi.setOnClickListener(new View.OnClickListener(){
             public void onClick(View x){
                 TextView textView1 = (TextView)findViewById(R.id.text);
                 textView1.setText("Rokuon Stop!");
@@ -169,6 +170,15 @@
                 startPlay();
             }
         });
+
+        Button STeisi = (Button)findViewById(R.id.button5);
+        STeisi.setOnClickListener(new View.OnClickListener(){
+            public void onClick(View x){
+                TextView textView1 = (TextView)findViewById(R.id.text);
+                textView1.setText("Saisei Stop!");
+                stopPlay();
+            }
+        });
     }
 
     private Handler handler = new Handler(){