Jukebox gets very quiet if you look away from it

I have noticed, that if you look away from a jukebox, but stand right next to it, the sound gets very quiet.

How to recreate the bug:

1. Place a jukebox

2. Put a disc of your choise in it

3. Stand next to it (or farther away, doesn’t matter) and look away

The music will get very quiet und gets only louder, if you look at it.