diff --git a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java
index ae927e6d6..c69a31bc3 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java
@@ -19,7 +19,6 @@ import android.media.MediaMetadataRetriever;
 import android.media.MediaPlayer;
 import android.media.RemoteControlClient;
 import android.media.RemoteControlClient.MetadataEditor;
-import android.os.AsyncTask;
 import android.os.Binder;
 import android.os.Build;
 import android.os.IBinder;
@@ -33,12 +32,9 @@ import android.widget.Toast;
 
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.load.engine.DiskCacheStrategy;
-import com.bumptech.glide.request.animation.GlideAnimation;
-import com.bumptech.glide.request.target.SimpleTarget;
 
 import org.apache.commons.lang3.StringUtils;
 
-import java.io.IOException;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
 
@@ -406,7 +402,7 @@ public class PlaybackService extends Service {
 
         @Override
         public void onSleepTimerAlmostExpired() {
-            mediaPlayer.setVolume(0.5f);
+            mediaPlayer.setVolume(0.1f);
         }
 
         @Override
diff --git a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceTaskManager.java b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceTaskManager.java
index 0a89860a8..4872dd7bd 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceTaskManager.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceTaskManager.java
@@ -350,8 +350,6 @@ public class PlaybackServiceTaskManager {
                     waitingTime -= now - lastTick;
                     lastTick = now;
 
-                    Log.d(TAG, "time left: " + waitingTime);
-
                     if(waitingTime < NOTIFICATION_THRESHOLD && !notifiedAlmostExpired) {
                         Log.d(TAG, "Sleep timer is about to expire");
                         if(vibrate) {
diff --git a/core/src/main/java/de/danoeh/antennapod/core/service/playback/ShakeListener.java b/core/src/main/java/de/danoeh/antennapod/core/service/playback/ShakeListener.java
index 77d765a85..446061ea6 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/service/playback/ShakeListener.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/service/playback/ShakeListener.java
@@ -24,6 +24,8 @@ public class ShakeListener implements SensorEventListener
     }
 
     public void resume() {
+        // only a precaution, the user should actually not be able to activate shake to reset
+        // when the accelerometer is not available
         mSensorMgr = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);
         if (mSensorMgr == null) {
             throw new UnsupportedOperationException("Sensors not supported");