title: NotificationChannel added sound to my notification that didn't have sound before
body: <p>After adding this to my code:</p>
  
  <pre><code>mBuilder.setPriority(NotificationCompat.PRIORITY_LOW)
  int importance = NotificationManager.IMPORTANCE_LOW;
  notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, importance);
  notificationChannel.enableLights(false);
  notificationChannel.enableVibration(false);                        
  notificationManager.createNotificationChannel(notificationChannel);
  mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
  </code></pre>
  
  <p>My notification that previously didn't have a sound now has a sound. On  my notification builder I've switched the priority to low because I read that could make it have a sound and now I don't really know what else to do. </p>
  
  <p>Any ideas?</p>
  
  <p>Thanks.</p>