Question [Q] How to detect if Ringer volume and Notification are tied?

I though that in every device the Ringer and the Notifications are tied since Jelly Bean. But the truth is that for example, some devices like Samsung S2 or S3 still have these channels separate (with Jelly Bean). On the other hand, my Xperia Neo V (with ICS) has these channels as tied (same as my Nexus 4 with KitKat).

So I can't detect that fact using Android versions. I would like to know if there is a way to detect if they are tied or not in order to offer the user a properly layout. Moreover, if I detect that they are tied, I can offer some tricks to simulate a 100% separation.

Thank you!