diff --git a/app/src/androidTest/java/org/ntlab/amaryllis/client/VoiceTest.java b/app/src/androidTest/java/org/ntlab/amaryllis/client/VoiceTest.java
deleted file mode 100644
index 1652f1f..0000000
--- a/app/src/androidTest/java/org/ntlab/amaryllis/client/VoiceTest.java
+++ /dev/null
@@ -1,98 +0,0 @@
-package org.ntlab.amaryllis.client;
-
-import androidx.appcompat.app.AppCompatActivity;
-import android.os.Bundle;
-import android.media.MediaPlayer;
-import android.media.MediaRecorder;
-import android.view.View;
-import android.widget.Button;
-import android.widget.LinearLayout;
-
-import java.io.File;
-
-public class VoiceTest extends AppCompatActivity {
-
-    Button[] bt = new Button[3];
-    MediaPlayer mp;
-    MediaRecorder mr;
-    String[] txt  = {"録音","停止","再生"};
-    boolean[] bl1 = {true,false,true};
-    boolean[] bl2 = {false,true,false};
-    File fl;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_voice_test);
-        LinearLayout ll = new LinearLayout(this);
-        ll.setOrientation(LinearLayout.VERTICAL);
-        setContentView(ll);
-
-        for (int i = 0; i <bt.length ; i++) {
-            bt[i] = new Button(this);
-            bt[i].setText(txt[i]);
-            bt[i].setEnabled(bl1[i]);
-            bt[i].setOnClickListener((View.OnClickListener) this);
-            ll.addView(bt[i]);
-        }
-        fl = new File(getFilesDir(),"Sample.3gp");      //録音ファイルの作成
-    }
-    public void onResume() {
-        super.onResume();
-
-        mp = new MediaPlayer();                               //メディアプレーヤークラスのオブジェクトの作成
-        mr = new MediaRecorder();                             //メディアレコーダークラスのオブジェクトの作成
-        mp.setOnCompletionListener((MediaPlayer.OnCompletionListener) this);
-    }
-    public void onPause() {
-        super.onPause();
-
-        mp.release();                                          //メディアプレーヤーの開放
-        mr.release();                                          //メディアレコーダーの開放
-    }
-
-    public void onCompletion(MediaPlayer mp) {
-        for (int i = 0; i <bt.length ; i++) {
-            bt[i].setEnabled(bl1[i]);
-        }
-    }
-
-    public void onClick(View v) {
-        if(v == bt[0]){
-            for (int i = 0; i < bt.length ; i++) {
-                bt[i].setEnabled(bl2[i]);
-            }
-            try{
-                mp.reset();
-                mr.setAudioSource(MediaRecorder.AudioSource.MIC);               //
-                mr.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);       //メディアレコーダーの設定
-                mr.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);          //
-
-                mr.setOutputFile(fl.getAbsolutePath());
-                mr.prepare();                               //録音の準備
-                mr.start();                                 //録音の開始
-
-            }catch (Exception e){}
-
-        }if(v ==bt[1]){
-            for (int i = 0; i < bt.length ; i++) {
-                bt[i].setEnabled(bl1[i]);
-            }
-            try{
-                mr.stop();                                  //録音の停止
-
-            }catch (Exception e){}
-
-        }if(v == bt[2]){
-            for (int i = 0; i < bt.length ; i++) {
-                bt[i].setEnabled(false);
-            }
-            try{
-                mp.setDataSource(fl.getAbsolutePath());
-                mp.prepare();
-                mp.start();
-            }catch (Exception e){}
-        }
-    }
-}
-