Galaxy S6 playing notification sound even though notifications are OFF

[Android Central Question]

My galaxy s6 keeps playing the notification sound every second or two. I went to make sure notifications was turned off, thinking somehow an update had turned them back on. However my notifications setting is already set to off. I can't get it to stop playing the sound and I do not know what other setting to try. I tried turning notifications on, moving the apps set to give them all to off, then setting notifications to off again. That made no difference. Help!

 

[B. Diddy]

Welcome to Android Central! Do the sounds correspond with a new notification in your status bar? If not, try turning off NFC and see if that gets rid of the sound.

 

[BigVern]

Didn't work! What else??