diff --git a/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/TestVoiceService.java b/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/TestVoiceService.java
index d434eb0..ab5e055 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/TestVoiceService.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/TestVoiceService.java
@@ -31,7 +31,7 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.media2.exoplayer.external.ExoPlayer;
+
 
 
 public class TestVoiceService extends IntentService implements MediaPlayer.OnPreparedListener,
@@ -142,12 +142,13 @@
 
     public void play(){
         final String url = "http://nitta-lab-www.is.konan-u.ac.jp/data/c948c729-a516-4ca2-88f3-35c0f2d20dba.3gp";
+        final String url2="http://nitta-lab-www.is.konan-u.ac.jp/data/c948c729-a516-4ca2-88f3-35c0f2d20dba.3gp";
         mediaPlayer=new MediaPlayer();
         mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
 
         try {
             mediaPlayer.reset();
-            mediaPlayer.setDataSource(url);
+            mediaPlayer.setDataSource(url2);
             mediaPlayer.prepare();
             mediaPlayer.start();
 
@@ -197,7 +198,7 @@
             mediaPlayer.reset();
             mediaPlayer.setDataSource(url);
             mediaPlayer.prepare();
-          //  mediaPlayer.setLooping(true);
+            //mediaPlayer.setLooping(true);
             mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                 @Override
                 public void onCompletion(MediaPlayer mediaPlayer) {
@@ -209,7 +210,7 @@
             e.printStackTrace();
         }
         // メディアボタンレシーバーをセットする
-        audioManager.registerMediaButtonEventReceiver(sampleReceiver);
+        //audioManager.registerMediaButtonEventReceiver(sampleReceiver);
 
         // リモートコントローラーインスタンスを生成
         if (mRemoteCtlClient == null) {