Samsung Galaxy Note 3 not using the normal sounds for locking and unlocking
One of my Note 3's is using weird sounds for locking/unlocking. When it unlocks, it uses the S4-like sound, along with a vanilla android-like sound. I at first thought it was a virus, but after looking through system files on my everyday note 3, I found that this sound is there by default. It's labelled as "Lock_None_effect." I then checked settings on the other note, and realized that the setting to change the lock effect was set to none, and also blocked out so that I was unable to change it. Any help?
EDIT: it uses the same sound when it locks, but without the S4-like sound.