Why don't my alerts sound? Trying to debug this issue.

AndroidManifest.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
       package="com.timsu.astrid"
-      android:versionCode="28"
-      android:versionName="1.9.3">
+      android:versionCode="29"
+      android:versionName="1.9.4">
       
     <uses-permission android:name="android.permission.VIBRATE"/>
     

src/com/timsu/astrid/activities/TaskEdit.java

@@ -547,6 +547,7 @@ public class TaskEdit extends TaskModificationTabbedActivity<TaskModelForEdit> {
     protected void onDestroy() {
         super.onDestroy();
         tagController.close();
+        alertController.close();
     }
 
     /* ======================================================================

src/com/timsu/astrid/utilities/Notifications.java

@@ -321,9 +321,12 @@ public class Notifications extends BroadcastReceiver {
                 appName,
                 reminder + " " + taskName,
                 pendingIntent);
-        if(!quietHours) {
+        if(quietHours) {
             notification.vibrate = null;
             notification.sound = null;
+            notification.defaults = Notification.DEFAULT_LIGHTS;
+        } else {
+            notification.defaults = Notification.DEFAULT_ALL;
         }
 
         Log.w("Astrid", "Logging notification: " + reminder);