Unfortunately not really. All I did was send a volume of 100 to the Backend which was primarily done by pycage for MediaBox. Essentially, I just raise the volume to 100 in OSSO for the N8x0. The other apps may use gstreamer or something else and those apps would need to set it to 100 in the code. If they do, it's possible the built-in sound system can get louder than third party systems.